| ICCU | intensive coronary care unit; intermediate coronary care unit |
|---|---|
| IOU | intensive care observation unit; international opacity unit |
| IRU | industrial rehabilitation unit; interferon reference unit |
| IU | immunizing unit; international unit; intrauterine; in utero; 5-iodouracil |
| KU | kallikrein unit; Karmen unit |
| unit of intermedin | A unit based upon the action of the hormone in causing the expansion of the melanophores in a hypophysectomised frog; equal to 1 ug of alkali-treated USP Posterior-pituitary Reference Standard. (05 Mar 2000) |
|---|---|
| unit of length | Metric system and SI: meter, CGS system: centimeter, variable in the English system: inch for short distances, foot for moderate distances and for elevation, mile for long distances. (05 Mar 2000) |
| unit of light | See: candela, lux. (05 Mar 2000) |
| unit of magnetic field intensity | See: gauss, tesla. (05 Mar 2000) |
| unit of mass | Metric system: gram, SI: kilogram, english system: pound. (05 Mar 2000) |
| unit of ocular convergence | The amount of convergence required to view binocularly an object 1 meter distant and exerting 1 diopter of accommodation. Synonym: unit of ocular convergence. (05 Mar 2000) |
| unit of oxytocin | The oxytocic activity of 0.5 mg of the USP Posterior-pituitary Reference Standard; 1 mg of synthetic oxytocin corresponds to 500 IU. (05 Mar 2000) |
| unit of penicillin | The penicillin activity of 0.6 ug of penicillin G. (05 Mar 2000) |
| unit of radioactivity | See: Becquerel. (05 Mar 2000) |
| unit of thyrotrophic activity | The activity of an amount of an extract of the anterior lobe of the hypophysis which, given daily for 5 days, will cause the thyroid of a guinea pig (weighing 200 g) to reach a weight of 600 mg. (05 Mar 2000) |
| unit of vasopressin | The pressor activity of 0.5 mg of the USP Posterior-pituitary Reference Standard; 1 mg of synthetic vasopressin corresponds to 600 IU. (05 Mar 2000) |
| unit of wavelength | See: Angstrom, nanometer. (05 Mar 2000) |
| unit of weight | See: unit of mass. (05 Mar 2000) |
| unit of work | See: unit of energy. (05 Mar 2000) |
| USP unit | A unit as defined and adopted by the United States Pharmacopeia. (05 Mar 2000) |