| Ibaraki virus | A virus of cattle in Japan, closely related to the bluetongue virus. (05 Mar 2000) |
|---|---|
| IBC | <abbreviation> Iron-binding capacity. (05 Mar 2000) |
| ibex | Origin: L, a kind of goat, the chamois. <zoology> One of several species of wild goats having very large, recurved horns, transversely ridged in front; called also steinbok. The Alpine ibex (Capra ibex) is the best known. The Spanish, or Pyrenean, ibex (C. Hispanica) has smoother and more spreading horns. Source: Websters Dictionary (01 Mar 1998) |
| IBHP | <radiobiology> Total biological hazard potential of a collection of radioactive materials summed over their decay lifetimes. One measure of the integrated biological hazard potential is the amount of water one would need to use to dilute the materials to the point where the water would be safe to drink. (09 Oct 1997) |
| ibidem | The same, in the same place. (09 Jan 1998) |
| ibis | <ornithology> Any bird of the genus Ibis and several allied genera, of the family Ibidae, inhabiting both the Old World and the new. Numerous species are known. They are large, wading birds, having a long, curved beak, and feed largely on reptiles. The sacred ibis of the ancient Egyptians (Ibis aethiopica) has the head and neck black, without feathers. The plumage of the body and wings is white, except the tertiaries, which are lengthened and form a dark purple plume. In ancient times this bird was extensively domesticated in Egypt, but it is now seldom seen so far north. The glossy ibis (Plegadis autumnalis), which is widely distributed both in the Old World and the new, has the head and neck feathered, except between the eyes and bill; the scarlet ibis (Guara rubra) and the white ibis (G. Alba) inhabit the West Indies and South America, and are rarely found in the United States. The wood ibis (Tantalus loculator) of America belongs to the Stork family (Ciconidae). See Wood ibis. Origin: L. Ibis, Gr.; of Egyptian origin. Source: Websters Dictionary (01 Mar 1998) |
| ibogaine | <chemical> One of several indole alkaloids extracted from tabernanthe iboga, baill. It is a hallucinogen and is being investigated for treatment of drug addiction, especially cocaine addiction. The mechanisms of action are not clear, but ibogaine probably interacts with opioid receptors and may be a neurotoxin. Pharmacological action: hallucinogens. Chemical name: Ibogamine, 12-methoxy- (12 Dec 1998) |
| ibotenate | An excitotoxin from Amanita sp., that acts on the NMDA receptor. (18 Nov 1997) |
| ibotenic acid | <chemical> Alpha-amino-3-hydroxy-5-isoxazoleacetic acid. Neurotoxic isoxazole substance found in amanita muscaria and a. Pantherina. It causes motor depression, ataxia, and changes in mood, perceptions and feelings, and is a potent excitatory amino acid agonist. Pharmacological action: excitatory amino acid agonists. Chemical name: 5-Isoxazoleacetic acid, alpha-amino-2,3-dihydro-3-oxo- (12 Dec 1998) |
| IBR | <abbreviation> Infectious bovine rhinotracheitis. (05 Mar 2000) |
| IBR virus | A herpesvirus causing infectious bovine rhinotracheitis. Synonym: IBR virus. (05 Mar 2000) |
| ibuprofen | <chemical> A non-steroidal anti-inflammatory agent with analgesic properties used in the therapy of rheumatism and arthritis. Pharmacological action: non-steroidal anti-inflammatory agents, cyclooxygenase inhibitors. Chemical name: Benzeneacetic acid, alpha-methyl-4-(2-methylpropyl)- (12 Dec 1998) |
| IBV | <abbreviation> Infectious bronchitis virus. (05 Mar 2000) |