Medical Term Definitions Start With - O
January 2, 2009 by admin
Filed under Medical Term
Start With - O
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
O
- Symbol for oxygen; orotidine.
- Abbreviation for opening (in formulas for electrical reactions).
- Symbol for a blood group in the ABO system. See ABO blood group, in Blood Groups Appendix.
- An abbreviation derived from the German phrase ohne Hauch (without film), used as a designation for: antigens that occur in the bacterial cell, in contrast to those in the flagella; specific antibodies for such somatic antigens; the agglutinative reaction between somatic antigen and its antibody.
O agglutinin
- an agglutinin that is formed as the result of stimulation by, and that reacts with, the relatively thermostable antigen(s) that are part of the cell wall of certain microorganisms;
- see ABO blood group, Blood Groups appendix.
O antigen
somatic antigen of enteric gram-negative bacteria. External part of cell wall lipopolysaccharide
O colony
growth of a nonmotile bacterium in discrete, compact colonies in contrast to a film of growth produced by some motile bacteria.
O shell
the outermost shell of electrons, so called because displacement of electrons causes an emission in the visible or optic range.
O’Beirne
See: O’Beirne sphincter
O’Beirne sphincter
a circular band of muscular fibers at the rectosigmoid junction.
O’Beirne valve
See: O’Beirne sphincter
O’Dwyer tube
a metal tube formerly used for intubation of the larynx in diphtheria.
O’Hara
See: O’Hara forceps
O’Hara forceps
two slender clamp forceps held together by a serrefine, once used in intestinal anastomosis; now obsolete.
O’nyong-nyong fever
a denguelike disease caused by O’nyong-nyong virus, a member of the family Togaviridae, and transmitted by a mosquito, characterized by joint pains and notable lymphadenopathy followed by a maculopapular eruption of the face that extends to the trunk and extremities but fades in several days without desquamation.
o’nyong-nyong virus
a virus of the genus Alphavirus, in the family Togaviridae, found in Uganda, Kenya, and the Republic of Congo, which causes o’nyong-nyong fever.
o-
In chemistry, the abbreviation for ortho- (2).
O-(triethylaminoethyl) cellulose
cellulose to which triethylaminoethyl groups have been attached; used in ion-exchange chromatography.
O-acetylcarnitine
The acetyl derivative of carnitine formed by carnitine acetyltransferase. Facilitates acetyl transport into the mitochondria and is an important fuel source for sperm.
O-acylcarnitine
Condensation product of a carboxylic acid and carnitine; the transport form for a fatty acid crossing the inner mitochondrial membrane.
o-aminobenzoic acid
One of the products of tryptophan catabolism.
o-chlorobenzalmalononitrile
A strong lacrimator that is an ingredient in chemical agents used in riot control.
O-diethylaminoethyl cellulose
cellulose to which diethylaminoethyl groups have been attached; used in anion-exchange chromatography.
o-diphenolase
an enzyme oxidizing catechols to 1,2-benzoquinones, with O2.
O-phosphono-
Prefix indicating a phosphonic acid radical (–PO3H2) attached through an oxygen atom, hence a phosphoric ester.
O-phosphoserine
The phosphoric ester of serine; found as a constituent in many proteins (phosphorylase a and phosvitin).
o-phthalaldehyde
A reagent used in the identification and the detection of amino acid.
O-R system
abbreviation for oxidation-reduction system.
O-succinylhomoserine (thiol)-lyase
An enzyme catalyzing the reaction between cystathionine and succinate to form l-cysteine and O-succinyl-l-homoserine.
O.D.
- Abbreviation for L. oculus dexter, right eye.
- Abbreviation for Doctor of Optometry.
o.d.
Abbreviation for L. omni die, every day.
O.U.
Abbreviation for Latin oculus uterque, each eye or both eyes.
OA
Abbreviation for occipitoanterior position.
OAC
Abbreviation for oculoauriculovertebral dysplasia (syndrome).
OAE
Abbreviation for otoacoustic emission.
oak apple
An excrescence on Quercus infectoria (family Fagaceae) and sometimes other species of Quercus (oak), caused by the deposit of the ova of a fly, Cynips gallae tinctorae; an astringent and styptic because of the tannin it contains.
oari-
Obsolete term for an ovary.
oasthouse urine disease
an autosomal recessively inherited metabolic defect in the absorption of methionine that is converted by intestinal bacteria to α-hydroxybutyric acid; characterized by diarrhea, tachypnea, and marked urinary excretion of α-hydroxybutyric acid (causing an odor like that of an oasthouse).
oat cell
a short, bluntly spindle-shaped cell that contains a relatively large, hyperchromatic nucleus, frequently observed in some forms of undifferentiated bronchogenic carcinoma.
oat cell carcinoma
- an anaplastic carcinoma composed of small cells;
- an anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with very scanty cytoplasm.
oath
A solemn affirmation or attestation.
oatmeal-tomato paste agar
a special culture medium for the production of ascospore formation in the dermatophytes.
OAV syndrome
a syndrome characterized by epibulbar dermoids, preauricular appendages, micrognathia, and vertebral and other anomalies.
Medical Terms - he4lth.com
Checkout this:
inside he4lth.com
Those of us that use make up are constantly asking the question, what’s the difference between Mineral and Regular Make-up? No matter what age we are there are a few facts we...
Definition: Disturbance of consciousness characterized by inability to engage in orderly thought or by lack of power to choose, distinguish, or act decisively. Medical terms related...
Hi, good post. I have been wondering about this issue,so thanks for posting.