| OAS | old age security; oral allergy syndrome; osmotically active substance |
|---|---|
| OAW | oral airways |
| OC | obstetrical conjugate; occlusocervical; office call; on call; only child; optic chiasma; oral contra... |
| OCA | oculocutaneous albinism; olivopontocerebellar atrophy; oral contraceptive agent |
| OCC | object-centered coordinate [method]; oral cholecystography |
| vitamin K epoxidase | <enzyme> Reductase is the reverse reaction of the epoxidase Registry number: EC 1.14.99.- Synonym: vitamin k epoxide reductase, menadione epoxide reductase, vitamin k 2,3-epoxide reductase, phylloquinone epoxide reductase, vitamin ko reductase (26 Jun 1999) |
|---|---|
| vitamin K unit | See: Dam unit. (05 Mar 2000) |
| vitamin P | A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. See: hesperidin, quercetin, rutin. Synonym: capillary permeability factor, citrin, permeability vitamin. (05 Mar 2000) |
| vitamin PP | A precursor of NAD, that is a product of the oxidation of nicotine. (18 Nov 1997) |
| vitamin u | <chemical> A vitamin found in green vegetables. It is used in the treatment of peptic ulcers, colitis, and gastritis and has an effect on secretory, acid-forming, and enzymatic functions of the intestinal tract. Pharmacological action: anti-ulcer agents, gastrointestinal agents. Chemical name: Sulfonium, (3-amino-3-carboxypropyl)dimethyl-, chloride, (S)- (12 Dec 1998) |
| metabolised vitamin D milk | Milk produced by feeding irradiated yeast to cows; standardised to contain not less than 400 USP units per quart. (05 Mar 2000) |
| permeability vitamin | A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. See: hesperidin, quercetin, rutin. Synonym: capillary permeability factor, citrin, permeability vitamin. (05 Mar 2000) |
| microbial vitamin | A substance necessary for the growth of certain microorganisms, e.g., biotin, p-aminobenzoic acid. (05 Mar 2000) |
| coagulation vitamin | An obsolete term for vitamin K. (05 Mar 2000) |
| Sherman-Bourquin unit of vitamin B2 | The amount of vitamin B2 required in the diet daily to sustain an average weekly gain of 3 g for 8 weeks in standard test rats; one unit is equivalent to 1 to 7 ug (0.001 to 0.007 mg) of riboflavin, depending on the deficiency diet used in the above assay. (05 Mar 2000) |
| irradiated vitamin D milk | Cow's milk exposed in a thin film to ultraviolet light and standardised to contain 400 USP units of vitamin D per quart. (05 Mar 2000) |
| fertility vitamin | <biochemistry> Functions as an antioxidant, binds oxygen free radicals that can cause tissue damage, may also play a protective role in the coronary arteries from the damaging effects of cholesterol. (27 Sep 1997) |
| fortified vitamin D milk | Milk produced through direct addition of vitamin D; standardised at 400 USP units per quart. (05 Mar 2000) |