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

SRIF
<abbreviation> Somatotropin release-inhibiting factor. ... (05 Mar 2000) ...

sRNA
<abbreviation> Soluble RNA. See entries under ribonucleic acid. ... (05 Mar 2000) ...

SRP
<abbreviation> Signal recognition particle. ... (05 Mar 2000) ...

SRS
<abbreviation> Slow-reacting substance. ... (05 Mar 2000) ...

srs-a
A group of leukotrienes (ltc4, ltd4, and lte4) that is the major mediator of bronchial constriction and other allergic reactions. Earlier studies had described a 'slow-reacting substance of anaphylaxis' released from guinea pig and cat lung by cobra venom, and in guinea pig lung after anaphylactic shock. The relationship between srs-a and members o …

SS
See Suspended solids. ... (05 Dec 1998) ...

ssDNA phage
<molecular biology> Single strand DNA phages such as MS2, FX174, as opposed to double stranded DNA phages or RNA phages. ... (10 Mar 1998) ...

ssociable
1. Capable of being, or fit to be, united in one body or company; associable. 'They are sociable parts united into one body.' (Hooker) ... 2. Inclined to, or adapted for, society; ready to unite with others; fond of companions; social. 'Society is no comfort to one not sociable.' (Shak) 'What can be uneasy to this sociable creature than the dry, pen …

SSP31 protein kinase
<enzyme> From saccharomyces cerevisiae; has hybrid structure of serine-threonine and tyrosine kinases ... Registry number: EC 2.7.1.- ... Synonym: ssp31 protein, ssp31 gene product ... (26 Jun 1999) ...

SSPE
<abbreviation> Subacute sclerosing panencephalitis. ... (05 Mar 2000) ...

sspe virus
A defective variant of measles virus (morbillivirus genus) that has been isolated from the brain tissue of patients with subacute sclerosing panencephalitis. ... (12 Dec 1998) ...

SSRI
Synonym for selective serotonin reuptake inhibitor ... <pharmacology> This is a class of drug that are used as antidepressants. ... Functionally, they increase the levels of serotonin in the body. These drugs can be dangerous if they are mixed with other drugs such as other antidepressants, illicit drugs (LSD, cocaine, methamphetamine), some an …

SSS
<abbreviation> Soluble specific substance. ... (05 Mar 2000) ...

ST junction
Synonym for J point ... The point marking the end of the QRS complex and the beginning of the S or T wave in the electrocardiogram. ... Synonym: ST junction. ... (05 Mar 2000) ...

St. Louis encephalitis virus
A group B arbovirus, in the family Flaviviridae, occurring in the U.S., Trinidad, and Panama; normally present as inapparent infection in humans, but sometimes a cause of encephalitis; the virus has been isolated from birds in Panama and from several mosquito species, especially Psorophora. ... (05 Mar 2000) ...

stab
To pierce with a pointed instrument, as a knife or dagger. ... Origin: Gael. Stob ... (05 Mar 2000) ...

stab culture
A culture produced by inserting an inoculating needle with inoculum down the centre of a solid medium contained in a test tube. ... Synonym: needle culture. ... (05 Mar 2000) ...

stab drain
A drain passed into a cavity through a puncture made at a dependent part away from the wound of operation, designed to prevent infection of the wound. ... (05 Mar 2000) ...

stab neutrophil
Synonym for band cell ... <pathology> Immature neutrophils released from the bone marrow reserve in response to acute demand. ... (18 Nov 1997) ...

stab wound
<surgery> A puncture wound that is generated from the applied force of a sharp object, to make a deep, conical wound. ... (10 Mar 1998) ...

staB-cell
Synonym for band cell ... <pathology> Immature neutrophils released from the bone marrow reserve in response to acute demand. ... (18 Nov 1997) ...

stabilate
A sample of organisms preserved alive on a single occasion. ... (05 Mar 2000) ...

stabile
Steady; fixed; denoting: 1) certain constituents of serum unaffected by ordinary degrees of heat; 2) an electrode held steadily on a part during the passage of an electric current. ... Compare: labile. ... Origin: L. Stabilis ... (05 Mar 2000) ...

stabilimeter
An instrument to measure the sway of the body when standing with feet together and usually with eyes closed. ... Origin: L. Stabilitas, firmness, + G. Metron, measure ... (05 Mar 2000) ...

stabilisation
The creation of a stable state. ... (18 Nov 1997) ...

stabilised baseplate
A baseplate lined with plastic material to improve its fit and stability. ... (05 Mar 2000) ...

stabiliser
1. That which renders something else more stable. ... 2. An agent that retards the effect of an accelerator, thus preserving a chemical equilibrium. ... 3. A part possessing the quality of rigidity or creating rigidity when added to another part. ... (05 Mar 2000) ...

stability
The quality of maintaining a constant character in the presence of forces which threaten to disturb it, resistance to change. ... (18 Nov 1997) ...

stabilization
1. The accomplishment of a stable state. ... Synonym: denture stability. ... (05 Mar 2000) ...

stabilizing fulcrum line
An imaginary line connecting occlusal rests, around which line the denture tends to rotate under masticatory force. ... (05 Mar 2000) ...

stable
1. Firmly established; not easily moved, shaken, or overthrown; fixed; as, a stable government. 'In this region of chance, . . . Where nothing is stable.' (Rogers) ... 2. Steady in purpose; constant; firm in resolution; not easily diverted from a purpose; not fickle or wavering; as, a man of stable character. 'And to her husband ever meek and stable …

stable angina
<cardiology> Existing angina which is not changing in severity, duration or frequency. ... (10 Mar 1998) ...

stable colloid
Synonym for reversible colloid ... A colloid that is again soluble in water after having been dried at ordinary temperature. ... Synonym: stable colloid. ... (05 Mar 2000) ...

stable factor
Synonym for factor vii ... <chemical> Heat- and storage-stable plasma protein that is activated by tissue thromboplastin to form factor viia in the extrinsic pathway of blood coagulation. The activated form then catalyses the activation of factor x to factor xa. ... Chemical name: Blood-coagulation factor VII ... (12 Dec 1998) ...

stable fracture
A fracture that does not tend to displace once it has been reduced and immobilised. ... (05 Mar 2000) ...

stable isotope
A nonradioactive nuclide; an isotope that shows no tendency to undergo radioactive decomposition. ... (05 Mar 2000) ...

staccato
1. Disconnected; separated; distinct; a direction to perform the notes of a passage in a short, distinct, and pointed manner. It is opposed to legato, and often indicated by heavy accents written over or under the notes, or by dots when the performance is to be less distinct and emphatic. ... 2. Expressed in a brief, pointed manner. 'Staccato and pe …

staccato speech
An abrupt utterance, each syllable being enunciated separately; noted especially in multiple sclerosis. ... Synonym: syllabic speech. ... (05 Mar 2000) ...

stachybotryotoxicosis
A type of mycotoxicosis seen in horses and cattle following ingestion of hay and fodder overgrown by the fungus Stachybotrys atra; may also occur in persons exposed to hay either by inhalation or by absorbing the toxin through the skin, and is manifested by skin rash, pharyngitis, and mild leukopenia. ... (05 Mar 2000) ...

stachybotrys
A deuteromycetous fungal genus including one species which forms a toxin in moldy hay that may cause a serious illness in horses. ... (12 Dec 1998) ...

stachydrine
N-methylproline methylbetaine;the betaine of l-proline found in alfalfa, chrysanthemum, and citrus plants. ... (05 Mar 2000) ...

stachyose
<plant biology> Digalactosyl sucrose, a compound involved in carbohydrate transport in the phloem of many plants and also in carbohydrate storage in some seeds. ... (10 Mar 1998) ...

stack
1. A large pile of hay, grain, straw, or the like, usually of a nearly conical form, but sometimes rectangular or oblong, contracted at the top to a point or ridge, and sometimes covered with thatch. 'But corn was housed, and beans were in the stack.' (Cowper) ... 2. A pile of poles or wood, indefinite in quantity. 'Against every pillar was a stack …

stactometer
Synonym: stalagmometer. ... Origin: G. Staktos, dropping, fr. Stazo, to let fall by drops, + metron, measure ... (05 Mar 2000) ...

staddle
1. Anything which serves for support; a staff; a prop; a crutch; a cane. 'His weak steps governing And aged limbs on cypress stadle stout.' (Spenser) ... 2. <botany> The frame of a stack of hay or grain. ... 3. A row of dried or drying hay, etc. ... 4. A small tree of any kind, especially a forest tree. ... In America, trees are called staddles f …

Stader splint
A splint used primarily in veterinary medicine; with metal pins through the proximal and distal segments of a long bone fracture, the fixation of the pins is maintained by the apparatus which is external to the limb. ... (05 Mar 2000) ...

Stader, Otto
<person> U.S. Veterinary surgeon, *1894. ... See: Stader splint. ... (05 Mar 2000) ...

Staderini, Rutilio
<person> 19th century Italian neuroanatomist. ... See: Staderini's nucleus. ... (05 Mar 2000) ...

Staderini's nucleus
Synonym for intercalated nucleus ... A small collection of nerve cells in the medulla oblongata lying lateral to the hypoglossal nucleus. ... Synonym: nucleus intercalatus, Staderini's nucleus. ... (05 Mar 2000) ...

stadiometer
An instrument for measuring standing or sitting height. ... Origin: L. Stadium, fr. G. Stadion, a fixed length, + G. Metron, measure ... (05 Mar 2000) ...

stadium
1. A Greek measure of length, being the chief one used for itinerary distances, also adopted by the Romans for nautical and astronomical measurements. It was equal to 600 Greek or 625 Roman feet, or 125 Roman paces, or to 606 feet 9 inches English. This was also called the Olympic stadium, as being the exact length of the foot-race course at Olympi …

staff
1. A long piece of wood; a stick; the long handle of an instrument or weapon; a pole or srick, used for many purposes; as, a surveyor's staff; the staff of a spear or pike. 'And he put the staves into the rings on the sides of the altar to bear it withal.' (Ex. Xxxviii. 7) 'With forks and staves the felon to pursue.' (Dryden) ... 2. A stick carried …

staff cell
Synonym for band cell ... <pathology> Immature neutrophils released from the bone marrow reserve in response to acute demand. ... (18 Nov 1997) ...

staff development
The process by which the employer promotes staff performance and efficiency consistent with management goals and objectives. ... (12 Dec 1998) ...

staff of Aesculapius
A rod with only one serpent encircling it and without wings; symbol of medicine and emblem of the American Medical Association, Royal Army Medical Corps (Britain), and Royal Canadian Medical Corps. ... See: caduceus. ... Origin: L. Aesculapius, G. Asklepios, god of medicine ... (05 Mar 2000) ...

Stafne bone cyst
Synonym for lingual salivary gland depression ... An indentation on the lingual surface of the mandible within which a portion of the submandibular gland lies; it appears radiographically as a sharply circumscribed ovoid radiolucency between the mandibular canal and the inferior border of the posterior mandible. ... Synonym: Stafne bone cyst, static …

Stafne, Edward
<person> U.S. Oral pathologist, *1894. ... See: Stafne bone cyst. ... (05 Mar 2000) ...

stag
1. <zoology> The adult male of the red deer (Cervus elaphus), a large European species closely related to the American elk, or wapiti. The male of certain other species of large deer. ... 2. A colt, or filly; also, a romping girl. ... 3. A castrated bull; called also bull stag, and bull seg. ... 4. An outside irregular dealer in stocks, who is n …

stage
<oncology> The extent to which cancer has spread from its original site to other parts of the body. Usually denoted by a number from Stage 1 (least severe) to Stage 4 (more advanced). Different lymphoma types have different criteria for staging. ... (12 May 1997) ...

stage mechanical
<microscopy> A small fixture, either built into the light microscope stage or attached separately, it holds the specimen slide and has two horizontal screw adjustments at right angles to each other. The screw motions permit the specimen to be moved as desired. The quantitative type has vermer scales for reading the amount of displacement to 0 …

stage micrometre
<microscopy> A graduated scale used as a standard on the stage of a light microscope for calibrating an eyepiece micrometre, also for determining the magnification of a set-up in photomicrography, etc. ... (05 Aug 1998) ...

stage of dilatation
The part of labour when the cervix dilates fully (to 10 centimeters). Also called the first stage of labour. ... (12 Dec 1998) ...

stage of expulsion
See: Second stage of labour. ... (12 Dec 1998) ...

stage of invasion
Synonym for incubative stage ... incubation period ...

stagger
1. An unsteady movement of the body in walking or standing, as if one were about to fall; a reeling motion; vertigo; often in the plural; as, the stagger of a drunken man. ... 2. <veterinary> A disease of horses and other animals, attended by reeling, unsteady gait or sudden falling; as, parasitic staggers; appopletic or sleepy staggers. ... 3. …

staggers
1. A form of decompression sickness in which vertigo, mental confusion, and muscular weakness are the chief symptoms. ... 2. A disease in sheep, marked by swaying and uncertain gait, caused by the presence of the larva of the tapeworm Multiceps multiceps in the brain, or by other cerebral lesions. ... Synonym: gid. ... (05 Mar 2000) ...

staghorn calculus
A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. ... Synonym: branched calculus, coral calculus, dendritic calculus. ... (05 Mar 2000) ...

staging
Staging of breast cancer is based on the TNM Classification which classifies the size, site and spread of the disease.Therapeutic decisions are formulated in part according to staging (they are formulated primarily according to lymph node status and ER and PR receptor levels in the tumourous tissue, refer definition of ER and PR in this dictionary) …

stagnant
1. That stagnates; not flowing; not running in a current or steam; motionless; hence, impure or foul from want of motion; as, a stagnant lake or pond; stagnant blood in the veins. ... 2. Not active or brisk; dull; as, business in stagnant. 'That gloomy slumber of the stagnant soul.' (Johnson) 'For him a stagnant life was not worth living.' (Palfrey) …

stagnant anoxia
Stagnant hypoxia severe enough to result in the absence of oxygen in tissues. ... (05 Mar 2000) ...

stagnant hypoxia
Tissue hypoxia characterised not by tissue oligaemia (tissue blood volume being normal or even increased), but by intravascular stasis due to impairment of venous outflow or (in some instances) to decreased arterial inflow. ... (05 Mar 2000) ...

stagnate
1. To cease to flow; to be motionless; as, blood stagnates in the veins of an animal; hence, to become impure or foul by want of motion; as, air stagnates in a close room. ... 2. To cease to be brisk or active; to become dull or inactive; as, commerce stagnates; business stagnates. 'Ready-witted tenderness . . . Never stagnates in vain lamentations …

stagnation
1. The condition of being stagnant; cessation of flowing or circulation, as of a fluid; the state of being motionless; as, the stagnation of the blood; the stagnation of water or air; the stagnation of vapors. ... 2. The cessation of action, or of brisk action; the state of being dull; as, the stagnation of business. ... Origin: Cf. F. Stagnation. …

stagnation mastitis
Painful distention of the breast occurring during the latter days of pregnancy and the first days of lactation. ... Synonym: caked breast. ... (05 Mar 2000) ...

Stahl, Friedrich
<person> German physician, 1811-1873. ... See: Stahl's ear. ... (05 Mar 2000) ...

Stahl, George
<person> German physician and chemist, 1660-1734. He promulgated the phlogiston theory. ... See: phlogiston. ... (05 Mar 2000) ...

Stahl's ear
A deformed external ear, in which the fossa ovalis and upper portion of the scaphoid fossa are covered by the helix; regarded as a stigma of degenerate constitution. ... (05 Mar 2000) ...

Stahli, Jean
<person> Swiss ophthalmologist, *1890. ... See: Hudson-Stahli line. ... (05 Mar 2000) ...

stain
1. To discolour by the application of foreign matter; to make foul; to spot; as, to stain the hand with dye; armor stained with blood. ... 2. To colour, as wood, glass, paper, cloth, or the like, by processess affecting, chemically or otherwise, the material itself; to tinge with a colour or colours combining with, or penetrating, the substance; to …

staining
The use of a dye, reagent, or other material for producing colouration in tissues or microorganisms for microscopic examination. ... (12 Dec 1998) ...

stainless steel
<chemical> Stainless steel. A steel containing ni, cr, or both. It does not tarnish on exposure and is used in corrosive environments. ... Chemical name: Stainless steel ... (12 Dec 1998) ...

stains-all
4,5,4',5'-Dibenzo-3,3'-diethyl-9-methylthiocarbocyanine bromide;a dye that stains phosphoproteins blue, proteins red, nucleic acids purple, and mucoproteins and mucopolysaccharides various colours on acrylamide gels; also used on tissue sections. ... (05 Mar 2000) ...

staircase phenomenon
Synonym for treppe ... A phenomenon in cardiac muscle first observed by H.P. Bowditch; if a number of stimuli of the same intensity are sent into the muscle after a quiescent period, the first few contractions of the series show a successive increase in amplitude (strength). ... Synonym: staircase phenomenon. ... Origin: Ger. Treppe, staircase ... (05 …

stake
1. To fasten, support, or defend with stakes; as, to stake vines or plants. ... 2. To mark the limits of by stakes; with out; as, to stake out land; to stake out a new road. ... 3. To put at hazard upon the issue of competition, or upon a future contingency; to wager; to pledge. 'I'll stake yon lamb, that near the fountain plays.' (Pope) ... 4. To pie …

stalactite
Origin: Gr. Oozing out in drops, dropping, fr. To drop: cf. F. Stalactite. ... <geology> A pendent cone or cylinder of calcium carbonate resembling an icicle in form and mode of attachment. Stalactites are found depending from the roof or sides of caverns, and are produced by deposition from waters which have percolated through, and partially …

stalagmometer
An instrument for determining exactly the number of drops in a given quantity of liquid; used as a measure of the surface tension of a fluid (the lower the tension, the smaller the drops and, consequently, the more numerous in a given quantity of the fluid). ... Synonym: stactometer. ... Origin: G. Stalagma, a drop, + metron, measure ... (05 Mar 2000) …

stalk
A stem. Usually refers to the pituitary stalk that connects the pituitary gland to the hypothalamus. ... (16 Dec 1997) ...

stalk of epiglottis
The lower end or pedicle of the cartilage of the epiglottis, attached to the superior notch of the thyroid cartilage. ... Synonym: petiolus epiglottidis. ... (05 Mar 2000) ...

stalked hydatid
Synonym for vesicular appendices of uterine tube ... A small fluid-filled cyst attached by a slender stalk to the fimbriated end of the uterine tube; a vestigial remnant of the embryonic mesonephric duct. ... Synonym: appendix vesiculosa, Morgagni's hydatid, morgagnian cyst, stalked hydatid, vesicular appendage. ... (05 Mar 2000) ...

stall
1. To put into a stall or stable; to keep in a stall or stalls; as, to stall an ox. 'Where King Latinus then his oxen stalled.' 'Dryden.' ... 2. To fatten; as, to stall cattle. ... 3. To place in an office with the customary formalities; to install. ... 4. To plunge into mire or snow so as not to be able to get on; to set; to fix; as, to stall a cart. …

staltic
Synonym: styptic. ... Origin: G. Staltikos, contractile ... (05 Mar 2000) ...

stamen
One of the male organs of a flower, consisting typically of a stalk (filament) and a pollen-bearing portion (anther). ... (09 Oct 1997) ...

stamina
1. The fixed, firm part of a body, which supports it or gives it strength and solidity; as, the bones are the stamina of animal bodies; the ligneous parts of trees are the stamina which constitute their strength. ... 2. Whatever constitutes the principal strength or support of anything; power of endurance; backbone; vigor; as, the stamina of a const …

staminate
Producing or consisting of stamens, flowers with stamens but not pistils. ... (09 Oct 1997) ...

staminode
A sterile stamen, often rudimentary. ... (09 Oct 1997) ...

staminodium
<plant biology> A sterile stamen or an organ resembling one. ... (09 Oct 1997) ...

staminophore
<plant biology> A band of tissue around the apex of the hypanthium in a eucalypt flower on which the stamens are inserted. ... (09 Oct 1997) ...

stammer
1. To hesitate in speech, halt, repeat, and mispronounce, by reason of embarrassment, agitation, unfamiliarity with the subject, or as yet unidentified physiologic causes. ... Compare: stutter. ... 2. To mispronounce or transpose certain consonants in speech. ... Origin: A.S. Stamur ... (05 Mar 2000) ...

stammering of the bladder
Synonym for urinary stuttering ... Frequent involuntary interruption occurring during the act of urination. ... Synonym: stammering of the bladder. ... (05 Mar 2000) ...

Stamnosoma
A genus of flukes of the family Heterophyidae, identical with Centrocestus. Two species, Stamnosoma armatum and Stamnosoma formosanum, have been described as sometimes infecting humans. ... Origin: G. Stamnos, a jar, + soma, body ... (05 Mar 2000) ...