| VAD | venous access device; ventricular assist device; vinblastine and dexamethasone; vitamin A deficiency... |
|---|---|
| VDD | atrial synchronous ventricular inhibited [pacemaker]; vitamin D-dependent |
| VDDR | vitamin D-dependent rickets |
| VDRG | vitamin D-binding alpha-blobulin |
| VDRR | vitamin D-resistant rickets |
| Bodansky unit | That amount of phosphatase that liberates 1 mg of phosphorus as inorganic phosphate during the first hour of incubation with a buffered substrate containing sodium beta-glycerophosphate. (05 Mar 2000) |
|---|---|
| bone dry unit | A quantity of wood residue which weighs 2,400 pounds at zero percent moisture content. (05 Dec 1998) |
| British Thermal Unit | <unit> Unit of energy needed to raise one pound of water by one degree fahrenheit. It is equal to 252 calories or 1055 Joules. Acronym: BTU (13 Nov 1997) |
| burst forming unit | <haematology> A bone marrow stem cell lineage detected in culture by its mitotic response to erythropoietin and subsequent erythrocytic differentiation in about 12 mitotic cycles into erythrocytes. (18 Nov 1997) |
| capon-comb unit | Amount of androgen needed to produce an increase in the capon comb surface of 20%. Synonym: capon-comb unit. (05 Mar 2000) |
| capon unit | Amount of androgen needed to produce an increase in the capon comb surface of 20%. Synonym: capon-comb unit. (05 Mar 2000) |
| vegetation unit | A patch, grouping or zone of plants evident in overall plant cover, which appears distinct from other such units because of the vegetation's structure and floristic composition, a given unit is typically topographically distinct and typically has a rather uniform soil, except possibly for relatively dry microsites (for example, tree bases, old tree stumps, mosquito ditch spoil piles and small earth hummocks) in an otherwise wet area or relatively wet microsites (for example small depressions) in an otherwise dry area. (09 Oct 1997) |
| cat unit | The dose of a drug (per kilogram of body weight of cat) which is just large enough to kill a cat when administered intravenously; was applied in the standardization of digitalis materials. (05 Mar 2000) |
| centimeter-gram-second unit | <unit> An absolute unit of the centimeter-gram-second system. (05 Mar 2000) |
| volume unit | A unit of a logarithmic scale for expressing the power level of a complex audio-frequency electrical signal, such as that transmitting music or speech; the power in volume unit's equals the decibels of power above a reference level of one milliwatt, as measured with an appropriate meter. (05 Mar 2000) |
| respiratory care unit | The hospital unit in which patients with respiratory conditions requiring special attention receive intensive medical care and surveillance. (12 Dec 1998) |
| riboflavin unit | Potency usually expressed in terms of weight of pure riboflavin. See: Sherman-Bourquin unit of vitamin B2. Synonym: vitamin B2 unit. (05 Mar 2000) |
| chlorophyll unit | The number of chlorophyll molecules required to reduce one molecule of carbon dioxide by photosynthesis. (05 Mar 2000) |
| meter-kilogram-second unit | An absolute unit of the meter-kilogram-second system. (05 Mar 2000) |
| chorionic gonadotropin unit | The specific gonadotropic activity of 0.1 mg of the standard preparation of chorionic gonadotropin originating from the urine or placentas of pregnant women. (05 Mar 2000) |