| haloferax volcanii | A species of halophilic archaea found in the dead sea. (12 Dec 1998) |
|---|---|
| halogen | <chemistry> An electronegative element or radical, which, by combination with a metal, forms a haloid salt; especially, chlorine, bromine, and iodine; sometimes, also, fluorine and cyanogen. See Chlorine family, under Chlorine. Origin: Gr. "als, "alos, salt + -gen: cf. F. Halogene. Source: Websters Dictionary (01 Mar 1998) |
| halogen acne | An acneform eruption caused by bromides or iodides. (05 Mar 2000) |
| halogenation | Incorporation of one or more halogen atoms into a molecule. (05 Mar 2000) |
| halogenoderma | Dermatosis caused by ingestion or injection of halogens, most notably bromides and iodides. Origin: halogen + G. Derma, skin (05 Mar 2000) |
| halogens | A family of nonmetallic, generally electronegative, elements of group viib of the periodic table. They are all multivalent and have oxidation numbers of -1 (the most common), 1, 3, 5, and 7. (12 Dec 1998) |
| Halogeton | A genus of plants (family Chenopodiaceae) on range lands in the western U.S. And other arid regions of the world; it causes poisoning in cattle and sheep because of the presence of soluble oxalates. (05 Mar 2000) |
| haloid | <chemistry> Resembling salt; said of certain binary compounds consisting of a metal united to a negative element or radical, and now chiefly applied to the chlorides, bromides, iodides, and sometimes also to the fluorides and cyanides. A haloid substance. Origin: Gr. "als, "alos salt: cf. F. Calde. Source: Websters Dictionary (01 Mar 1998) |
| halomancy | See Alomancy. Source: Websters Dictionary (01 Mar 1998) |
| halometer | An instrument used to measure the diffraction halo of a red blood cell; based on the premise that the halo of the large erythrocyte of pernicious anaemia is smaller than that of the normal cell; the hazy colourless halo of normal size is characteristic of secondary anaemia. (05 Mar 2000) |
| halones | <biology, ornithology> Alternating transparent and opaque white rings which are seen outside the blastoderm, on the surface of the developing egg of the hen and other birds. Origin: NL, fr. Gr, a halo. Source: Websters Dictionary (01 Mar 1998) |
| haloperidol | This antipsychotic drug is used to treat schizophrenia and manic psychosis, it is sometimes used to treat Gilles de la Tourette's syndrome. (09 Oct 1997) |
| haloperidol reductase | <enzyme> A ketone reductase Registry number: EC 1.1.1.- (26 Jun 1999) |
| halophil | Halophile A microorganism whose growth is enhanced by or dependent on a high salt concentration. Origin: G. Hals, salt, + philos, fond (05 Mar 2000) |
| halophile | Any organism that lives or thrives in a salty environment. (09 Oct 1997) |