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

eccentropiesis
Pressure exerted from within outward. ... Origin: G. Ek, out, + kentron, centre, + piesis, pressure ... (05 Mar 2000) ...

ecchondroma
<tumour> 1. A cartilaginous neoplasm arising as an overgrowth from normally situated cartilage, as a mass protruding from the articular surface of a bone, in contrast to enchondroma. ... 2. An enchondroma which has burst through the shaft of a bone and become pedunculated. ... Synonym: ecchondrosis. ... Origin: G. Ek, from, + chondros, cartilage …

ecchondrosis
Synonym for ecchondroma ... <tumour> 1. A cartilaginous neoplasm arising as an overgrowth from normally situated cartilage, as a mass protruding from the articular surface of a bone, in contrast to enchondroma. ... 2. An enchondroma which has burst through the shaft of a bone and become pedunculated. ... Synonym: ecchondrosis. ... Origin: G. Ek, …

ecchondrotome
Synonym: chondrotome. ... Origin: G. Ek, out, + chondros, cartilage, + tome, incision ... (05 Mar 2000) ...

ecchordosis physaliformis
A notochordal rest of the cranial clivus which may form a small tumour. ... (05 Mar 2000) ...

ecchymoma
A slight haematoma following a bruise. ... Origin: G. Ek, out, + chymos, juice, + -oma, tumour ... (05 Mar 2000) ...

ecchymosed
Characterised by or affected with ecchymosis. ... (05 Mar 2000) ...

ecchymosis
<dermatology> A small haemorrhagic spot, larger than a petechia, in the skin or mucous membrane forming a nonelevated, rounded or irregular, blue or purplish patch. ... Origin: Gr. Ekchymosis ... (18 Nov 1997) ...

ecchymotic
Characterised by ecchymosis. ... (12 Dec 1998) ...

ecchymotic mask
A dusky discoloration of the head and neck occurring when the trunk has been subjected to sudden and extreme compression, as in traumatic asphyxia. ... (05 Mar 2000) ...

Eccleston
Synonym for Paget-Eccleston stain ... <technique> An aldehyde-thionin-PAS-orange G staining technique modified to identify seven different cell types in the anterior pituitary gland. ... (05 Mar 2000) ...

eccrine
<dermatology> Denoting the flow of sweat. ... Synonym: exocrine. ... Origin: G. Ek-krino, to secrete ... (05 Mar 2000) ...

eccrine acrospiroma
Synonym for clear cell hidradenoma ... <tumour> A tumour derived from eccrine sweat glands, composed of glycogen-rich clear cells. ... Synonym: eccrine acrospiroma, nodular hidradenoma. ... (05 Mar 2000) ...

eccrine gland
<anatomy, dermatology> A coiled tubular sweat gland (other than apocrine gland's) that occurs in the skin on almost all parts of the body and secrete sweat directly onto the skin. ... (05 Mar 2000) ...

eccrine poroma
<tumour> A poroma or acrospiroma of the eccrine sweat glands, usually occurring on the sole of the foot. ... (05 Mar 2000) ...

eccrine spiradenoma
<tumour> A typically painful benign skin tumour composed of two cell types derived from the secretory part of eccrine sweat glands. ... (05 Mar 2000) ...

eccrinology
<study> The branch of physiology and of anatomy concerned with the secretions and the secreting (exocrine) glands. ... Origin: G. Ek-drino, to secrete, + logos, study ... (05 Mar 2000) ...

eccrisis
1. The removal of waste products. ... 2. Any waste product; excrement. ... Origin: G. Separation ... (05 Mar 2000) ...

eccyesis
<obstetrics> An alternative term for ectopic pregnancy. ... Origin: G. Ek, out, + kyesis, pregnancy ... (05 Mar 2000) ...

ecdemic
<epidemiology> Denoting a disease brought into a region from without. ... Origin: G. Ekdemos, foreign, from home, fr. Demos, people ... (05 Mar 2000) ...

ecdysial gland
<entomology> Insect structures that originate from the ectoderm of the ventrocaudal part of the head and serve as a source of ecdysone. ... Synonym: peritracheal glands, prothoracic glands, thoracic glands, ventral glands. ... (05 Mar 2000) ...

ecdysiasm
A morbid tendency to undress to produce sexual desire in others. ... Origin: fr. G. Ekdyo, to remove one's clothes ... (05 Mar 2000) ...

ecdysone
<endocrinology> Family of steroid hormones found in insects, crustaceans and plants. In insects, _ ecdysone stimulates moulting. The steadily maturing character of the moults is affected by steadily decreasing levels of juvenile hormone. _ ecdysone (ecdysterone) has a slightly different structure and is also found widely. Phytoecdysones are s …

ecdysone dehydrogenase-isomerase
<enzyme> Converts alpha-ecdysone to less active 3-epiecdysone, using NADP ... Registry number: EC 1.1.1.- ... (26 Jun 1999) ...

ecdysteroid 26-hydroxylase
<enzyme> Converts ecdysone to 26-hydroxyecdysone in the presence of NADPH ... Registry number: EC 1.14.13.- ... (26 Jun 1999) ...

ecdysteroid UDP-glucosyltransferase
<enzyme> From the baculovirus lymantria dispar multinucleocapsid nuclear polyhedrosis virus (ldmnpv); mw 55 kD; isoelectric point 7.6; genbank u04321 ... Registry number: EC 2.4.1.- ... Synonym: egt gene product ... (26 Jun 1999) ...

ecdysterone
<chemical> 2 beta,3 beta,14,20,22r,25-hexahydroxy-5 beta-cholest-7-en-6-one. An insect hormone which is active during the molting stage of the insect's development. ... Chemical name: Cholest-7-en-6-one, 2,3,14,20,22,25-hexahydroxy-, (2beta,3beta,5beta,22R)- ... (12 Dec 1998) ...

ECF
<abbreviation> Extracellular fluid. ... (05 Mar 2000) ...

ECF-A
<abbreviation> Eosinophil chemotactic factor of anaphylaxis. ... (05 Mar 2000) ...

ECFV
<abbreviation> Extracellular fluid volume. ... (05 Mar 2000) ...

ECG
Synonym for electrocardiogram ... <cardiology, investigation> An recording of the electrical activity of the heart on a moving strip of paper. The electrocardiogram detects and records the electrical potential of the heart during contraction. ... Acronym: ECG ... (13 Nov 1997) ...

ECG lead
An electrocardiographic cable with connections within the electronics of the machine designated for an electrode placed at a particular point on the body surface. ... (05 Mar 2000) ...

ecgonine benzoate
Synonym for benzoylecgonine ... A metabolite of cocaine produced by hydrolysis; it can be found in the urine. ... Synonym: benzoate, ecgonine benzoate. ... (05 Mar 2000) ...

echelon
To place in echelon; to station divisions of troops in echelon. ... 1. An arrangement of a body of troops when its divisions are drawn up in parallel lines each to the right or the left of the one in advance of it, like the steps of a ladder in position for climbing. Also used adjectively; as, echelon distance. ... 2. <astronomy> An arrangement …

echeosis
Rarely used term for a mental disturbance caused by continuous disturbing noises. ... Origin: G. Echein, to suffer from noises in ears ... (05 Mar 2000) ...

Echidnophaga gallinacea
The sticktight flea, a serious pest of poultry in subtropical America; also frequently attacks domestic mammals and humans. ... (05 Mar 2000) ...

echin-
See: echino-. ... (05 Mar 2000) ...

echinacea
<botany> A commonly used herb for maintaining the immune system. ... There is evidence that use of echinacea can increase levels of tumour necrosis factor which is often already elevated in HIV positive people and may contribute to both wasting and the replication of HIV. Little clinical trial data are available on the herb's value in HIV and …

echinate
Bearing stiff, stout, prickly hairs. ... (09 Oct 1997) ...

echino-
Echin- ... Prickly, spiny. ... Origin: G. Echinos, hedgehog, sea urchin ... (05 Mar 2000) ...

Echinochasmus
A genus of digenetic flukes (family Echinostomatidae), particularly common in wading and fish-eating birds; the species Echinochasmus perfoliatus var. Japonicus is reported as a rare intestinal parasite of humans in Japan. ... Origin: echino-+ G. Chasma, open mouth ... (05 Mar 2000) ...

echinococciasis
Synonym for echinococcus disease ... echinococcosis ...

echinococcosis
Infection caused by tapeworms of the genus echinococcus. The larval stage is called hydatid or hydatid cyst and develops in almost all mammals, especially domestic and farm animals, and in man under certain epidemiological conditions. The liver, lungs, and kidney are particularly common sites of development and infestation. . Echinococcosis, hepati …

echinococcosis, hepatic
Helminth infection of the liver caused by echinococcus granulosus or echinococcus multilocularis. ... (12 Dec 1998) ...

echinococcosis, pulmonary
Helminth infection of the lung caused by echinococcus granulosus or echinococcus multilocularis. ... (12 Dec 1998) ...

echinococcus
<dermatology, microbiology> A tissue infection by the larval stage of the Echinococcus granulosus worm. ... This disease is common in South America, the Middle East, Asia and Africa. Sporadic cases have been reported in the us. Infection occurs after ingestion of eggs in infected dog faeces. The infection is carried to the liver where cysts fo …

echinococcus cyst
Synonym for hydatid cyst ... A cyst formed in the liver, or, less frequently, elsewhere, by the larval stage of Echinococcus, chiefly in ruminants; two morphological forms caused by Echinococcus granulosus are found in humans: the unilocular hydatid cyst and the osseous hydatid cyst; a third form in humans is the alveolar hydatid cyst, caused by Ech …

echinococcus disease
Synonym for echinococcosis ... Infection caused by tapeworms of the genus echinococcus. The larval stage is called hydatid or hydatid cyst and develops in almost all mammals, especially domestic and farm animals, and in man under certain epidemiological conditions. The liver, lungs, and kidney are particularly common sites of development and infesta …

echinocyte
<haematology> Erythrocytes that have shrunk (in hypertonic medium) so that the surface is spiky. ... (19 Jan 1998) ...

Echinodermata
<marine biology> Phylum of exclusively marine animals. The phylum is divided into 5 classes: the Asteroidea (starfish), the Echinoidea (sea urchins), the Ophiuroidea (brittle stars and basket stars), the Holothuroidea (the sea cucumbers) and the Crinoidea (sea lilies and feather stars). ... (19 Jan 1998) ...

echinoidea
<zoology> The class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid. ... Alternative forms: Echinidea, and Echinoida. ... Origin: NL. See Echinus, and -oid. ... Source: Websters Dicti …

echinomycin
<chemical> A toxic polypeptide quinoxaline antibiotic isolated from streptomyces echinatus that binds to DNA and inhibits RNA synthesis. It has antitumour and antibacterial activity. ... Pharmacological action: antibiotics, antineoplastic, antibiotics, peptide, nucleic acid synthesis inhibitors. ... Chemical name: Quinomycin A ... (12 Dec 1998)< …

Echinorhynchus
A genus of acanthocephalid (thorny-headed) worms which originally included species now contained in Macracanthorhynchus, Gigantorhynchus, and other genera. ... Origin: echino-+ G. Rhynchos, snout ... (05 Mar 2000) ...

echinosis
A condition in which the red blood cells have lost their smooth outlines, resembling an echinus or sea urchin. ... Origin: echino-+ G. -osis, condition ... (05 Mar 2000) ...

Echinosphaerium
<protozoa> Previously Actinosphaerium. Genus of the order Heliozoida of the Protozoa. The organisms are multinucleate and have a starburst of radiating axopodia, the microtubules of which have been much studied. ... (19 Jan 1998) ...

echinostoma
A genus of intestinal flukes of the family echinostomatidae which consists of many species. They occur in man and other vertebrates. The intermediate hosts are frequently mollusks. ... (12 Dec 1998) ...

echinostomatidae
A family of flukes (trematoda) characterised by a collar of spines at their anterior end. The body is elongated and is covered with spines, and the two suckers are usually close together. (noble et al., parasitology: the biology of animal parasites, 6th ed, p183) ... (12 Dec 1998) ...

echinostomiasis
Infection by flukes of the genus echinostoma. ... (12 Dec 1998) ...

echinus
Origin: L, a hedgehog, sea urchin, Gr. ... 1. <zoology> A hedgehog. ... 2. <zoology> A genus of echinoderms, including the common edible sea urchin of Europe. ... 3. The rounded molding forming the bell of the capital of the Grecian Doric style, which is of a peculiar elastic curve. See Entablature. The quarter-round molding (ovolo) of the …

Echis
The saw-scaled or carpet viper, a genus of small (under 1 m), irritable, and alert snakes with a highly toxic venom; they are responsible for numerous snakebite cases with many fatalities. ... Origin: G. Echis, a viper ... (05 Mar 2000) ...

echistatin
<protein> Disintegrin found in the venom of the saw scaled viper, Echis carinatus. ... (18 Nov 1997) ...

echo
Origin: L. Echo, Gr. Echo, sound, akin to, sound, noise; cf. Skr. Va to sound, bellow; perh. Akin to E. Voice: cf. F. Echo. ... 1. A sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound. 'The babbling echo mocks the hounds.' (Shak) 'The woods shall answer, and the echo ring.' (P …

echo beat
Extrasystole produced by the return of an impulse in the heart retrograde to a focus near its origin which then returns antegradely to produce a second depolorization. ... (05 Mar 2000) ...

echo planar
A method of magnetic resonance imaging that allows rapid image acquisition during free induction decay, using technically difficult rapidly oscillating radiofrequency gradients. ... (05 Mar 2000) ...

echo reaction
Synonym for echolalia ... A disorder of speech where there is an involuntary repetition several times of the same word. ... (27 Sep 1997) ...

echo speech
Synonym for echolalia ... A disorder of speech where there is an involuntary repetition several times of the same word. ... (27 Sep 1997) ...

echo-free
Synonym for anechoic ... The property of appearing echo-free or without echoes on a sonographic image; a clear cyst appears anechoic. ... See: transonic. ... Synonym: echo-free. ... Origin: G. An-priv. + echo + ic ... (05 Mar 2000) ...

echo-planar imaging
A type of magnetic resonance imaging that uses only one nuclear spin excitation per image and therefore can obtain images in a fraction of a second rather than the minutes required in traditional mri techniques. It is used in a variety of medical and scientific applications. ... (12 Dec 1998) ...

echoacousia
A subjective disturbance of hearing in which a sound appears to be repeated. ... Origin: echo + G. Akouo, to hear ... (05 Mar 2000) ...

echoaortography
Application of ultrasound techniques to the diagnosis and study of the aorta. ... Origin: echo + aortography ... (05 Mar 2000) ...

echocardiogram
<investigation, radiology> A test which uses high-frequency sound waves to image the heart and surrounding tissues. ... (27 Sep 1997) ...

echocardiographic differentiation
The processing of a signal so that the output depends upon the rate of change of the input; e.g., it will display changes in amplitude but will reduce the duration of the waveform. ... (05 Mar 2000) ...

echocardiography
Echocardiography is a diagnostic test which uses ultrasound waves to make images of the heart chambers, valves and surrounding structures. It can measure cardiac output and is a sensitive test for inflammation around the heart (pericarditis). It can also be used to detect abnormal anatomy or infections of the heart valves. ... (12 Dec 1998) ...

echocardiography, doppler
Measurement of intracardiac blood flow using an m-mode and/or two-dimensional (2-d) echocardiogram while simultaneously recording the spectrum of the audible doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells. ... (12 Dec 1998) ...

echocardiography, doppler, colour
Echocardiography applying the doppler effect, with the superposition of flow information as colours on a gray scale in a real-time image. ... (12 Dec 1998) ...

echocardiography, doppler, pulsed
Echocardiography applying the doppler effect, with velocity detection combined with range discrimination. Short bursts of ultrasound are transmitted at regular intervals and the echoes are demodulated as they return. ... (12 Dec 1998) ...

echocardiography, four-dimensional
Dynamic three-dimensional echocardiography using the added dimension of time to impart the cinematic perception of motion. (mayo clin proc 1993;68:221-40) ... (12 Dec 1998) ...

echocardiography, three-dimensional
Echocardiography amplified by the addition of depth to the conventional two-dimensional echocardiography visualizing only the length and width of the heart. Three-dimensional ultrasound imaging was first described in 1961 but its application to echocardiography did not take place until 1974. (mayo clin proc 1993;68:221-40) ... (12 Dec 1998) ...

echocardiography, transesophageal
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the oesophagus. ... (12 Dec 1998) ...

echoencephalography
Use of reflected ultrasound in the diagnosis of intracranial pathologic processes. ... (12 Dec 1998) ...

echoes
<radiobiology> Wave packets (pulses) which have been reflected or otherwise returned to the detector, which are sufficiently delayed and retain sufficient magnitude so that they are perceived as a signal distinct from the one transmitted directly. (In other words, just like sound echoes, only for analogous phenomena with other waves.) ... (09 …

echogenic
<radiology> Producing an acoustic shadow. Something that can be seen on an ultrasound or echocardiogram. Often relates to a more prominent feature of a normal structure. ... (10 Nov 1998) ...

echogenic pancreas
<radiology> Fatty degeneration, cystic fibrosis, calcification (chronic pancreatitis) ... (12 Dec 1998) ...

echogram
A record obtained using high frequency acoustic reflection techniques in any one of the various display modes, especially an echocardiogram. ... See: ultrasonogram. ... Origin: echo + G. Gramma, a diagram ... (05 Mar 2000) ...

echographer
Synonym for ultrasonographer ... A person who performs and interprets ultrasonographic examinations. ... Synonym: echographer, sonographer. ... (05 Mar 2000) ...

echographia
A form of agraphia in which one cannot write spontaneously, but can write from dictation or copy. ... Origin: echo + G. Grapho, to write ... (05 Mar 2000) ...

echography
<investigation> Ultrasonography, the use of ultrasound as a diagnostic aid. Ultrasound waves are directed at the tissues and a record is made, as on an oscilloscope, of the waves reflected back through the tissues, which indicate interfaces of different acoustic densities and thus differentiate between solid and cystic structures. ... (18 Nov …

echokinesis
Echokinesia ... Synonym: echopraxia. ... Origin: echo + G. Kinesis, movement ... (05 Mar 2000) ...

echolalia
A disorder of speech where there is an involuntary repetition several times of the same word. ... (27 Sep 1997) ...

echolocation
An auditory orientation mechanism involving the emission of high frequency sounds which are reflected back to the emitter (animal). ... (12 Dec 1998) ...

echomatism
Synonym: echopraxia. ... Origin: echo + G. Matizo, to strive to do ... (05 Mar 2000) ...

echomimia
Synonym: echopathy. ... Origin: echo + G. Mimesis, imitation ... (05 Mar 2000) ...

echomotism
Synonym: echopraxia. ... Origin: echo + L. Motio, motion ... (05 Mar 2000) ...

echopathy
A form of psychopathology, usually associated with schizophrenia, in which the words (echolalia) or actions (echopraxia) of another are imitated and repeated. ... Synonym: echomimia. ... Origin: echo + G. Pathos, suffering ... (05 Mar 2000) ...

echophony
Echophonia ... A duplication of the voice sound occasionally heard during auscultation of the chest. ... Origin: echo + G. Phone, voice ... (05 Mar 2000) ...

echophotony
The mental association of sound tones with particular colours. ... Origin: echo + G. Phos (phot-), light, + tonos, tone ... (05 Mar 2000) ...

echophrasia
Synonym: echolalia. ... Origin: echo + phrasis, speech ... (05 Mar 2000) ...

echopraxia
Involuntary imitation of movements made by another. ... See: echopathy. ... Synonym: echokinesis, echokinesia, echomatism, echomotism. ... Origin: echo + G. Praxis, action ... (05 Mar 2000) ...

echothiophate iodide
<chemical> A potent, long-acting cholinesterase inhibitor used as a miotic in the treatment of glaucoma. ... Pharmacological action: cholinesterase inhibitor, miotics, parasympathomimetic. ... Chemical name: Ethanaminium, 2-((diethoxyphosphinyl)thio)-N,N,N-trimethyl-, iodide ... (12 Dec 1998) ...

echovirus
<virology> A group of human picornaviruses found in the gastrointestinal tract. ... There are many inapparent infections, but certain of the serotypes are associated with fever, upper respiratory infections, aseptic meningitis and pericarditis. ... Echo is derived from enteric cytopathic human orphan, where orphan implies that they are not asso …