| bufo bufo | <zoology> A species of the true toads, bufonidae, widely distributed in the united states and europe. (12 Dec 1998) |
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| bufo marinus | >zoology> A species of the true toads, bufonidae, becoming fairly common in the southern united states and almost pantropical. The secretions from the skin glands of this species are very toxic to animals. (12 Dec 1998) |
| bufogenins | A group of steroids (bufanolides) in the venom of a family of toads (Bufonidae) having a digitalis-like action upon the heart; cardiac glycosides having a six-membered lactone. See: bufotoxins. Synonym: bufagenins, bufogenins. (05 Mar 2000) |
| bufonidae | <zoology> The family of true toads belonging to the order anura. The genera include bufo, ansonia, nectophrynoides, and atelopus. (12 Dec 1998) |
| bufonite | <paleontology> An old name for a fossil consisting of the petrified teeth and palatal bones of fishes belonging to the family of Pycnodonts (thick teeth), whose remains occur in the oolite and chalk formations; toadstone; so named from a notion that it was originally formed in the head of a toad. Origin: L. Bufo toad: cf. F. Bufonite. Source: Websters Dictionary (01 Mar 1998) |
| buformin | <chemical> 1-butylbiguanide. An oral hypoglycaemic agent that inhibits gluconeogenesis, increases glycolysis, and decreases glucose oxidation. Pharmacological action: hypoglycaemic agents. Chemical name: Imidodicarbonimidic diamide, N-butyl- (12 Dec 1998) |
| bufotenin | <chemical> A hallucinogenic serotonin analog found in frog or toad skins, mushrooms, higher plants, and mammals, especially in the brains, plasma, and urine of schizophrenics. Bufotenin has been used as a tool in CNS studies and misused as a psychedelic. Pharmacological action: hallucinogens, serotonin antagonists. Chemical name: 1H-Indol-5-ol, 3-(2-(dimethylamino)ethyl)- (12 Dec 1998) |
| bufotenine | <chemical> An indole alkaloid with hallucinogenic effects, isolated from Piptadenia spp (Mimosidae), first isolated from skin glands of toad (Bufo sp). (18 Nov 1997) |
| bufotoxins | 1. A group of steroid lactones (conjugates of bufagins and suberylarginine at C-3) of digitalis present in the venoms of toads (family Bufonidae); their effects are similar to but weaker than those of the bufagins. 2. <zoology> Specifically, the main toxin of the European toad (Bufo vulgaris). (05 Mar 2000) |
| bufuralol 1'-hydroxylase | <enzyme> Liver microsomal enzyme utilizing NADPH and cytochrome p-450; competetive inhibition by debrisoquine Registry number: EC 1.14.99.- Synonym: bufuralol 1'-monooxygenase (26 Jun 1999) |
| bug | 1. A bugbear; anything which terrifies. "Sir, spare your threats: The bug which you would fright me with I seek." (Shak) 2. <zoology> A general name applied to various insects belonging to the Hemiptera; as, the squash bug; the chinch bug, etc. 3. <zoology> An insect of the genus Cimex, especially the bedbug (C. Lectularius). See Bedbug. 4. <zoology> One of various species of Coleoptera; as, the ladybug; potato bug, etc.; loosely, any beetle. 5. <zoology> One of certain kinds of Crustacea; as, the sow bug; pill bug; bait bug; salve bug, etc. According to present popular usage in England, and among housekeepers in America, bug, when not joined with some qualifying word, is used specifically for bedbug. As a general term it is used very loosely in America, and was formerly used still more loosely in England. "God's rare workmanship in the ant, the poorest bug that creeps." . "This bug with gilded wings." . Bait bug. See Bait. Bug word, swaggering or threatening language. Origin: OE. Bugge, fr. W. Bwg, bwgan, hobgoblin, scarecrow, bugbear. Cf. Bogey, Boggle. Source: Websters Dictionary (01 Mar 1998) |
| bugbane | <botany> A perennial white-flowered herb of the order Ranunculaceae and genus Cimiciguga; bugwort. There are several species. Source: Websters Dictionary (01 Mar 1998) |
| bugfish | <zoology> The menhaden. Source: Websters Dictionary (01 Mar 1998) |
| buggery | Synonym: sodomy. Origin: O.F. Bougre, heretic, fr. Med. L. Bulgaris, a Bulgar (hence a heretic) (05 Mar 2000) |
| bugle | An elingated glass bead, of various colours, though commonly black. Origin: LL. Bugulus a woman's ornament: cf. G. Bugel a bent piece of metal or wood, fr. The same root as G. Biegen to bend, E. Bow to bend. <botany> A plant of the genus Ajuga of the Mint family, a native of the Old World. Yellow bugle, the Ajuga chamaepitys. Origin: F. Bugle; cf. It. Bugola, L. Bugillo. Source: Websters Dictionary (01 Mar 1998) |