| demersed | <botany> Situated or growing under water, as leaves; submersed. Source: Websters Dictionary (01 Mar 1998) |
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| demesne | A lord's chief manor place, with that part of the lands belonging thereto which has not been granted out in tenancy; a house, and the land adjoining, kept for the proprietor's own use. Alternative forms: demain] Ancient demesne. See Ancient. Origin: OE. Demeine, demain, rule, demesne, OF. Demeine, demaine, demeigne, domaine, power, F. Domaine domain, fr. L. Dominium property, right of ownership, fr. Dominus master, proprietor, owner. See Dame, and cf. DEmain, Domain, Danger, Dungeon. Source: Websters Dictionary (01 Mar 1998) |
| demethylase | <enzyme> That transfers a methyl group from S adenosyl methionine to a substrate. most commonly encountered in bacterial chemotaxis where the methyl accepting chemotaxis proteins (MCPs) become methylated in the course of adaptation. (18 Nov 1997) |
| demethylation | The enzymatic removal of methyl groups. (05 Mar 2000) |
| demethylmacrocin O-methyltransferase | <enzyme> Catalyses the conversion of demethylmacrocin at the 2''' oh position to macrocin as the penultimate step of tylosin biosynthesis in streptomyces fradiae Registry number: EC 2.1.1.- Synonym: demethylmacrocin o-mt, s-adenosyl-l-methionine-demethylmacrocin o-methyltransferase (26 Jun 1999) |
| demi- | Half, lesser. See: hemi-, semi-. Origin: Fr. Fr. L. Dimidius, half (05 Mar 2000) |
| demigauntlet | A glovelike bandage for the fingers and hand. Origin: demi-+ gauntlet, armored glove, fr. M.E., fr. O. Fr., fr. Germanic (05 Mar 2000) |
| demigauntlet bandage | A gauntlet bandage that covers only the hand, leaving the fingers exposed. (05 Mar 2000) |
| demigoddess | A female demigod. Source: Websters Dictionary (01 Mar 1998) |
| demilune | 1. A work constructed beyond the main ditch of a fortress, and in front of the curtain between two bastions, intended to defend the curtain; a ravelin. See Ravelin. 2. <physiology> A crescentic mass of granular protoplasm present in the salivary glands. Each crescent is made of polyhedral cells which under some circumstances are supposed to give rise to new salivary cells. Origin: F. Demi-lune. Source: Websters Dictionary (01 Mar 1998) |
| demilune body | A circular body of extreme transparency except for a crescentic punctate substance on one edge which contains haemoglobin. The body is much larger than a red blood cell, but is thought possibly to be a degenerated red blood cell swollen by imbibition; it has been found in malaria and in convalescence from typhoid fever; the transparent portion is called the glass body. (05 Mar 2000) |
| demineralization | A loss or decrease of the mineral constituents of the body or individual tissues, especially of bone. (05 Mar 2000) |
| demipenniform | 1. Having a feather arrangement on one side; resembling one-half of a feather. 2. Denoting certain muscles with fibres running at an acute angle from one side of a tendon. Synonym: demipenniform. Origin: uni-+ L. Penna, feather (05 Mar 2000) |
| democracy | A system of government in which there is free and equal participation by the people in the political decision-making process. (12 Dec 1998) |
| democratic republic of the congo | A republic in central africa, south of the central african republic and north of angola and zambia. Its name changes bespeak its history: 1885-1908 congo free state, 1908-60 belgian congo, 1960-71 democratic republic of the congo, 1971-97 zaire. It changed its name back to democratic republic of the congo in 1997. The name zaire is an alternate name for the congo river from nzai, a kikongo dialect form of nazdi, river. (12 Dec 1998) |