| bitternut | <botany> The swamp hickory (Carya amara). Its thin-shelled nuts are bitter. Source: Websters Dictionary (01 Mar 1998) |
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| bitterroot | <botany> A plant (Lewisia rediviva) allied to the purslane, but with fleshy, farinaceous roots, growing in the mountains of Idaho, Montana, etc. It gives the name to the Bitter Root mountains and river. The Indians call both the plant and the river Spaet'lum. Source: Websters Dictionary (01 Mar 1998) |
| bitters | A liquor, generally spirituous in which a bitter herb, leaf, or root is steeped. Source: Websters Dictionary (01 Mar 1998) |
| bittersweet | 1. Anything which is bittersweet. 2. A kind of apple so called. 3. <botany> A climbing shrub, with oval coral-red berries (Solanum dulcamara); woody nightshade. The whole plant is poisonous, and has a taste at first sweetish and then bitter. The branches are the officinal dulcamara. An American woody climber (Celastrus scandens), whose yellow capsules open late in autumn, and disclose the red aril which covers the seeds; also called Roxbury waxwork. Source: Websters Dictionary (01 Mar 1998) |
| bitterweed | <botany> A species of Ambrosia (A. Artemisiaefolia); Roman worm wood. Source: Websters Dictionary (01 Mar 1998) |
| bitterwood | A West Indian tree (Picraena excelsa) from the wood of which the bitter drug Jamaica quassia is obtained. Source: Websters Dictionary (01 Mar 1998) |
| bitterwort | <botany> The yellow gentian (Gentiana lutea), which has a very bitter taste. Source: Websters Dictionary (01 Mar 1998) |
| Bittner agent | <virology> Earlier name, now superseded, for the mouse mammary tumour virus. (18 Nov 1997) |
| Bittner virus | Member of the retrovirus subfamily Oncornavirinae, antigenically distinct from the murine leukaemia-sarcoma complex, that is associated with adenocarcinomatous tumours of the mammary gland, commonly latent in wild and laboratory mice and causing cancer only in genetically susceptible strains under certain hormonal influences. Synonym: Bittner agent, Bittner virus, Bittner's milk factor, mammary cancer virus of mice, milk factor, mouse mammary tumour virus. (05 Mar 2000) |
| Bittner's milk factor | Member of the retrovirus subfamily Oncornavirinae, antigenically distinct from the murine leukaemia-sarcoma complex, that is associated with adenocarcinomatous tumours of the mammary gland, commonly latent in wild and laboratory mice and causing cancer only in genetically susceptible strains under certain hormonal influences. Synonym: Bittner agent, Bittner virus, Bittner's milk factor, mammary cancer virus of mice, milk factor, mouse mammary tumour virus. (05 Mar 2000) |
| Bittner, John | <person> U.S. Oncologist, 1904-1961. See: Bittner agent, Bittner's milk factor. (05 Mar 2000) |
| bittor bittour | <zoology> The bittern. See: Bittern. Source: Websters Dictionary (01 Mar 1998) |
| Bittorf's reaction | In cases of renal colic, pain radiating to the kidney upon squeezing the testicle or pressing the ovary. (05 Mar 2000) |
| Bittorf, Alexander | <person> German physician, 1876-1949. See: Bittorf's reaction. (05 Mar 2000) |