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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

reptilase
<enzyme> A proteolytic enzyme obtained from the venom of fer de lance (bothrops atrox). It is used as a plasma clotting agent for fibrinogen and for the detection of fibrinogen degradation products. The presence of heparin does not interfere with the clotting test. ... Pharmacological action: fibrinolytic agent. ... Registry number: EC 3.4.21.2 …

reptile
1. <zoology> An animal that crawls, or moves on its belly, as snakes, or by means of small, short legs, as lizards, and the like. 'An inadvertent step may crush the snail That crawls at evening in the public path; But he that has humanity, forewarned, Will tread aside, and let the reptile live.' (Cowper) ... 2. <zoology> One of the Repti …

reptilia
<zoology> A class of air-breathing oviparous vertebrates, usually covered with scales or bony plates. The heart generally has two auricles and one ventricle. The development of the young is the same as that of birds. ... It is nearly related in many respects to Aves, or birds. The principal existing orders are Testidunata or Chelonia (turtles) …

reptilian
Belonging to the reptiles. ... <geology> Reptilian age, that part of geological time comprising the Triassic, Jurassic, and Cretaceous periods, and distinguished as that era in which the class of reptiles attained its highest expansion; called also the Secondary or Mezozoic age. ... <zoology> One of the Reptilia; a reptile. ... Source: Web …

republic
1. Common weal. ... 2. A state in which the sovereign power resides in the whole body of the people, and is exercised by representatives elected by them; a commonwealth. Cf. Democracy. ... In some ancient states called republics the sovereign power was exercised by an hereditary aristocracy or a privileged few, constituting a government now distincti …

republican
1. Of or pertaining to a republic. 'The Roman emperors were republican magistrates named by the senate.' (Macaulay) ... 2. Consonant with the principles of a republic; as, republican sentiments or opinions; republican manners. Republican party. ... An earlier name of the Democratic party when it was opposed to the Federal party. Thomas Jefferson was …

repudiate
1. To cast off; to disavow; to have nothing to do with; to renounce; to reject. 'Servitude is to be repudiated with greater care.' (Prynne) ... 2. To divorce, put away, or discard, as a wife, or a woman one has promised to marry. 'His separation from Terentis, whom he repudiated not long afterward.' (Bolingbroke) ... 3. To refuse to acknowledge or to …

repullulation
Renewed germination; return of a morbid process or growth. ... Origin: L. Re-, again, + pullulo, pp. -atus, to sprout ... (05 Mar 2000) ...

repulsion
1. The act of repulsing or repelling, or the state of being repulsed or repelled. ... 2. A feeling of violent offence or disgust; repugnance. ... 3. <physics> The power, either inherent or due to some physical action, by which bodies, or the particles of bodies, are made to recede from each other, or to resist each other's nearer approach; as, …

requiem
1. A mass said or sung for the repose of a departed soul. 'We should profane the service of the dead To sing a requiem and such rest to her As to peace-parted souls.' (Shak) ... 2. Any grand musical composition, performed in honor of a deceased person. ... 3. Rest; quiet; peace. 'Else had I an eternal requiem kept, And in the arms of peace forever sl …

require
1. To demand; to insist upon having; to claim as by right and authority; to exact; as, to require the surrender of property. 'Shall I say to Caesar What you require of him?' (Shak) 'By nature did what was by law required.' (Dryden) ... 2. To demand or exact as indispensable; to need. 'just gave what life required, and gave no more.' (Goldsmith) 'The …

required arch length
The sum of the mesiodistal widths of the permanent teeth from first permanent molar to first permanent molar. ... (05 Mar 2000) ...

requirement
1. Something needed. ... 2. A condition. ... (05 Mar 2000) ...

requisition
1. The act of requiring, as of right; a demand or application made as by authority. Specifically: A demand by the invader upon the people of an invaded country for supplies, as of provision, forage, transportation, etc. A formal application by one officer to another for things needed in the public service; as, a requisition for clothing, troops, or …

requite
To repay; in a good sense, to recompense; to return (an equivalent) in good; to reward; in a bad sense, to retaliate; to return (evil) for evil; to punish. 'He can requite thee; for he knows the charma That call fame on such gentle acts as these.' (Milton) 'Thou hast seen it; for thou beholdest mischief and spite, to requite it with thy hand.' (Ps. …

RES
<abbreviation> Reticuloendothelial system. ... (05 Mar 2000) ...

resact
Sea urchin peptide hormone, affecting motility and metabolism. Receptor is a plasma membrane guanylate cyclase. ... (18 Nov 1997) ...

resazurin
A blue compound, 7-hydroxy-3H-phenoxazin-3-one 10-oxide, used as a redox indicator in the reductase test of milk and also as a pH indicator (orange at 3.8, violet at 6.5). ... (05 Mar 2000) ...

rescinnamine
3,4,5-Trimethoxycinnamic acid ester of methyl reserpate; a purified ester alkaloid of the alseroxylon fraction of species of Rauwolfia; chemically and pharmacologically related to reserpine, with similar uses. ... (05 Mar 2000) ...

rescript
1. The answer of an emperor when formallyconsulted by particular persons on some difficult question; hence, an edict or decree. 'In their rescripts and other ordinances, the Roman emperors spoke in the plural number.' (Hare) ... 2. The official written answer of the pope upon a question of canon law, or morals. ... 3. A counterpart. ... Origin: L. Res …

rescue
1. The act of rescuing; deliverance from restraint, violence, or danger; liberation. 'Spur to the rescue of the noble Talbot.' (Shak) ... 2. The forcible retaking, or taking away, against law, of things lawfully distrained. The forcible liberation of a person from an arrest or imprisonment. ... The retaking by a party captured of a prize made by the …

rescue work
Activities devoted to freeing persons or animals from danger to life or well-being in accidents, fires, bombings, floods, earthquakes, other disasters and life-threatening conditions. While usually performed by team efforts, rescue work is not restricted to organised services. ... (12 Dec 1998) ...

resealed ghost
<haematology> Membrane shells formed by lysis of erythrocytes resealed by adjusting the cation composition of the medium. Relatively impermeable, although more permeable than the original membrane. ... (18 Nov 1997) ...

research
Careful, a diligent search, a close searching, studious inquiry or examination. ... (18 Nov 1997) ...

research design
A plan for collecting and utilizing data so that desired information can be obtained with sufficient precision or so that an hypothesis can be tested properly. ... (12 Dec 1998) ...

research personnel
Those individuals engaged in research. ... (12 Dec 1998) ...

research support
Financial support of research activities. ... (12 Dec 1998) ...

research, controlled
The first controlled clinical research was probably done in 1875 by the british naval surgeon james lind who, on board the hms salisbury, gave sailors with scurvy either oranges or lemons or cider or vinegar or nutmeg (or another treatment) and after just six days discovered that the citrus-consuming sailors had recovered from scury, until then the …

resect
To remove part or all of an organ or tissue. ... (09 Oct 1997) ...

resectable
Capable of being removed by surgery ... (09 Oct 1997) ...

resection
Excision of a portion or all of an organ or other structure. ... (18 Nov 1997) ...

resectoscope
<instrument> A special endoscopic instrument for the transurethral electrosurgical removal of lesions involving the bladder, prostate gland, or urethra. ... (05 Mar 2000) ...

resectoscope sheath
An operative sheath through which transurethral electroresection of bladder tumours or prostate gland can be performed. ... (05 Mar 2000) ...

resentment
1. The act of resenting. ... 2. The state of holding something in the mind as a subject of contemplation, or of being inclined to reflect upon something; a state consciousness; conviction; feeling; impression. 'He retains vivid resentments of the more solid morality.' (Dr. H. More) 'It is a greater wonder that so many of them die, with so little res …

reserpine
<drug> Alkaloid derived from Rauwolfia, blocks the packaging of noradrenaline in to presynaptic vesicles. Useful experimental tool to determine the involvement of sympathetic innervation. ... (18 Nov 1997) ...

reservation
1. The act of reserving, or keeping back; concealment, or withholding from disclosure; reserve. 'With reservation of an hundred knights.' (Shak) 'Make some reservation of your wrongs.' (Shak) ... 2. Something withheld, either not expressed or disclosed, or not given up or brought forward. ... 3. A tract of the public land reserved for some special us …

reserve
1. <geology> Typically used to describe the amount of a substance which can be extracted from the earth with current technology at current prices. Typically much smaller than resources. ... 2. That which is reserved, or kept back, as for future use. 'The virgins, besides the oil in their lamps, carried likewise a reserve in some other vessel f …

reserve air
Synonym for expiratory reserve volume ... The extra volume of air that can be expired with maximum effort beyond the level reached at the end of a normal, quiet expiration. Common abbreviation is erv. ... (12 Dec 1998) ...

reserve force
The energy residing in the organism or any of its parts above that required for its normal functioning. ... (05 Mar 2000) ...

reserve margin
The amount by which the utility's total electric power capacity exceeds maximum electric demand. ... (05 Dec 1998) ...

reservoir
1. <anatomy> A place or cavity for storage, for anatomical structures serving as a storage space for fluids. ... 2. <geography> A place where anything is kept in store; especially, a place where water is collected and kept for use when wanted, as to supply a fountain, a canal, or a city by means of aqueducts, or to drive a mill wheel, or …

reservoir bag
Synonym for breathing bag ... A collapsible reservoir from which gases are inhaled and into which gases may be exhaled during general anaesthesia or artificial ventilation. ... Synonym: reservoir bag. ... (05 Mar 2000) ...

reservoir host
The host of an infection in which the infectious agent multiplies and/or develops, and upon which the agent is dependent for survival in nature; the host essential for the maintenance of the infection during times when active transmission is not occurring. ... (05 Mar 2000) ...

reservoir of infection
Living or nonliving material in or on which an infectious agent multiplies and/or develops and is dependent for its survival in nature. ... (05 Mar 2000) ...

reservoir of spermatozoa
The site where spermatozoa are stored; the distal portion of the tail of the epididymis and the beginning of the ductus deferens. ... (05 Mar 2000) ...

reservoir, ommaya
A device implanted under the scalp and used to deliver anticancer drugs to the fluid surrounding the brain and spinal cord. ... (12 Dec 1998) ...

reset nodus sinuatrialis
Reset of the sinoatrial node produced by premature depolarisation (usually atrial) when the sum of the duration of the premature cycle and the return cycle is less than twice the spontaneous cycle length. ... Compare: nonreset nodus sinuatrialis. ... (05 Mar 2000) ...

residence characteristics
Elements of residence that characterise a population. They are applicable in determining need for and utilization of health services. ... (12 Dec 1998) ...

resident
<specialist> An American term relating to a physician who has completed medical school and an internship and is in the process of receiving specialised training. ... (09 Oct 1997) ...

resident fish
Fish species that complete their entire life cycle in freshwater. Non-anadromous fish. An example is rainbow trout. ... (05 Dec 1998) ...

resident physician
Synonym for resident ... <specialist> An American term relating to a physician who has completed medical school and an internship and is in the process of receiving specialised training. ... (09 Oct 1997) ...

residential facilities
Long-term care facilities which provide supervision and assistance in activities of daily living with medical and nursing services when required. ... (12 Dec 1998) ...

residential mobility
Frequent change of residence, either in the same city or town, or between cities, states or communities. ... (12 Dec 1998) ...

residential treatment
A specialised residential treatment program for behaviour disorders including substance abuse. It may include therapeutically planned group living and learning situations including teaching of adaptive skills to help patient functioning in the community. ... (12 Dec 1998) ...

residua
Plural of residuum. ... (05 Mar 2000) ...

residual
Remaining or left behind. ... Origin: L. Residuus ... (18 Nov 1997) ...

residual abscess
An abscess recurring at the site of a former abscess resulting from persistence of microbes and pus. ... (05 Mar 2000) ...

residual affinity
Secondary forces that enable apparently saturated atoms, ions, or molecules to attract other atoms or groups, causing such phenomena as complex formation, hydration, adsorption, etc. ... (05 Mar 2000) ...

residual air
Synonym for residual volume ... The volume of air remaining in the lungs at the end of a maximal expiration. Common abbreviation is rv. ... (12 Dec 1998) ...

residual body
1. <cell biology> Secondary lysosomes containing material that cannot be digested. ... 2. <biology> The surplus cytoplasm shed by spermatids during their differentiation to spermatozoa. Usually the cytoplasm from several spermatids connected by cytoplasmic bridges. ... 3. <microbiology> Surplus cytoplasm containing pigment and left …

residual body of Regaud
The excess cytoplasm that separates from the spermatozoon during spermiogenesis. ... (05 Mar 2000) ...

residual capacity
Synonym for residual volume ... The volume of air remaining in the lungs at the end of a maximal expiration. Common abbreviation is rv. ... (12 Dec 1998) ...

residual cleft
The remnants of the pituitary diverticulum that occur between the pars distalis and pars intermedia; a distinct lumen is present in some animals, but, in humans, is present only during prenatal development and sometimes in young children. ... Synonym: residual lumen. ... (05 Mar 2000) ...

residual cyst
The persistence of an apical periodontal cyst that remains after tooth extraction. ... (05 Mar 2000) ...

residual error
The estimated discrepancy between the actual measured datum and the value for that value computed after a model has been fitted to the set of the data by an estimator. ... (05 Mar 2000) ...

residual inhibition
The inhibition or suppression of tinnitus by use of a sound-generating device (residual inhibitor) which masks the sounds of tinnitus and produces a residual sound-inhibiting effect when the device is turned off. ... (05 Mar 2000) ...

residual inhibitor
A sound-generating device, worn in the ear, which inhibits or suppresses the sounds of tinnitus by masking, with a residual inhibitory effect when the device is turned off. ... (05 Mar 2000) ...

residual lumen
Synonym for residual cleft ... The remnants of the pituitary diverticulum that occur between the pars distalis and pars intermedia; a distinct lumen is present in some animals, but, in humans, is present only during prenatal development and sometimes in young children. ... Synonym: residual lumen. ... (05 Mar 2000) ...

residual ovary syndrome
<syndrome> The development of a pelvic mass, pelvic pain, and occasionally dyspareunia following hysterectomy without removal of both ovaries. ... (05 Mar 2000) ...

residual ridge
That portion of the processus alveolaris remaining in the edentulous mouth following resorption of the section containing the alveoli. ... (05 Mar 2000) ...

residual schizophrenia
Blunted or inappropriate affect, social withdrawal, eccentric behaviour, or loose associations, but without prominent psychotic symptoms, as the remains of former psychotic symptoms of schizophrenia. ... (05 Mar 2000) ...

residual urine
Urine remaining in the bladder at the end of micturition in cases of prostatic obstruction, bladder atony, etc. ... (05 Mar 2000) ...

residual volume
The volume of air remaining in the lungs at the end of a maximal expiration. Common abbreviation is rv. ... (12 Dec 1998) ...

residue
<biochemistry> A single unit within a polymer, such as an amino acid within a polypeptide or protein. ... This term reflects the fact that sugars, nucleotides, and amino acids usually lose a few atoms (usually hydrogen and oxygen) when they are polymerised into a larger molecule. ... (10 Mar 1998) ...

residuum
Synonym: residue. ... Origin: L. Ntr. Of residuus, left behind, remaining, fr. Re-sideo, to sit back, remain behind ... (05 Mar 2000) ...

resilience
1. Energy (per unit of volume) released upon unloading. ... 2. Springiness or elasticity. ... Origin: L. Resilio, to spring back, rebound ... (05 Mar 2000) ...

resiliency
1. The act of resiling, springing back, or rebounding; as, the resilience of a ball or of sound. ... 2. <physics> The mechanical work required to strain an elastic body, as a deflected beam, stretched spring, etc, to the elastic limit; also, the work performed by the body in recovering from such strain. ... (10 Mar 1998) ...

resilin
<protein> Amorphous rubber like protein found in insect cuticle: similar to elastin, though there is no fibre formation. ... (18 Nov 1997) ...

resin
Any one of a class of yellowish brown solid inflammable substances, of vegetable origin, which are nonconductors of electricity, have a vitreous fracture, and are soluble in ether, alcohol, and essential oils, but not in water; specif, pine resin. ... Resins exude from trees in combination with essential oils, gums, etc, and in a liquid or semiliqui …

resin acids
A class of organic compounds derived from various natural plant resins; diterpenes containing a phenanthrene ring system; e.g., abietic acid, pimaric acid, ester gums. ... Synonym: resinic acids. ... (05 Mar 2000) ...

resin cement
A monomer or monomer/polymer system used as a dental luting agent; used in cementation of restorations or orthodontic brackets to the teeth. ... (05 Mar 2000) ...

resin cements
Dental cements composed either of polymethyl methacrylate or dimethacrylate, produced by mixing an acrylic monomer liquid with acrylic polymers and mineral fillers. The cement is insoluble in water and is thus resistant to fluids in the mouth, but is also irritating to the dental pulp. It is used chiefly as a luting agent for fabricated and tempora …

resinates
Salts or esters of resin acids. ... (05 Mar 2000) ...

resines
Esters of resin acids. ... (05 Mar 2000) ...

resinic acids
Synonym for resin acids ... A class of organic compounds derived from various natural plant resins; diterpenes containing a phenanthrene ring system; e.g., abietic acid, pimaric acid, ester gums. ... Synonym: resinic acids. ... (05 Mar 2000) ...

resinoid
1. A substance containing a resin or resembling one. ... 2. An extract obtained by evaporating a tincture. ... 3. Resembling rosin. ... (05 Mar 2000) ...

resinols
Resin alcohols. ... (05 Mar 2000) ...

resinous
1. <chemistry> Of or pertaining to resin; of the nature of resin; resembling or obtained from resin. ... 2. <physics> Resinous electricity, electricity which is exited by rubbing bodies of the resinous kind. ... See: Negative electricity, under Negative. ... Origin: L. Resinous: cf. F. Resineux. ... (10 Mar 1998) ...

resins
Flammable, amorphous, vegetable products of secretion or disintegration, usually formed in special cavities of plants. They are generally insoluble in water and soluble in alcohol, carbon tetrachloride, ether, or volatile oils. They are fusible and have a conchoidal fracture. They are the oxidation or polymerization products of the terpenes, and ar …

resins, synthetic
Polymers of high molecular weight which at some stage are capable of being molded and then harden to form useful components. ... (12 Dec 1998) ...

resist
A substance used to prevent a colour or mordant from fixing on those parts to which it has been applied, either by acting machanically in preventing the colour, etc, from reaching the cloth, or chemically in changing the colour so as to render it incapable of fixing itself in the fibres. The pastes prepared for this purpose are called resist pastes …

resistance
The failure of a condition to respond or remit following treatment. ... (16 Dec 1997) ...

resistance factor
<molecular biology> A self-replicating fragment of nucleic acid that confers drug resistance and is transmitted from one bacterium to another via conjugation. ... (09 Oct 1997) ...

resistance factors
Synonym for resistance plasmids ... Plasmid's carrying genes responsible for antibiotic (or antibacterial drug) resistance among bacteria (notably Enterobacteriaceae); they may be conjugative or nonconjugative plasmid's, the former possessing transfer genes (resistance transfer factor) lacking in the latter. ... Synonym: R factors, R plasmids, resist …

resistance form
The shape given to a cavity preparation that enables the dental restoration to withstand masticatory forces. ... (05 Mar 2000) ...

resistance plasmids
Plasmid's carrying genes responsible for antibiotic (or antibacterial drug) resistance among bacteria (notably Enterobacteriaceae); they may be conjugative or nonconjugative plasmid's, the former possessing transfer genes (resistance transfer factor) lacking in the latter. ... Synonym: R factors, R plasmids, resistance factors, resistance-transferri …

resistance pyrometer
Synonym for resistance thermometer ... A device measuring temperature by the change of the electrical resistance of a metal wire. ... Synonym: resistance pyrometer. ... (05 Mar 2000) ...

resistance thermometer
A device measuring temperature by the change of the electrical resistance of a metal wire. ... Synonym: resistance pyrometer. ... (05 Mar 2000) ...

resistance-inducing factor
An agent from normal chick embryos that interferes with multiplication of the avian leukosis-sarcoma virus, and is seemingly an avirulent leukosis virus antigenically related to the avian leukosis-sarcoma virus. ... (05 Mar 2000) ...

resistance-transfer factor
The transfer gene of the resistance plasmid. ... (05 Mar 2000) ...