| acenesthesia | Absence of the normal sensation of physical existence, or of the consciousness of visceral functioning. Origin: G. A-priv. + koinos, common, + aisthesis, feeling (05 Mar 2000) |
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| acenocoumarin | <chemical> A coumarin that is used as an anticoagulant. Its actions and uses are similar to those of warfarin. Pharmacological action: anticoagulant. Chemical name: 2H-1-Benzopyran-2-one, 4-hydroxy-3-(1-(4-nitrophenyl)-3-oxobutyl)- (12 Dec 1998) |
| acenocoumarol | <chemical> A coumarin that is used as an anticoagulant. Its actions and uses are similar to those of warfarin. Pharmacological action: anticoagulant. Chemical name: 2H-1-Benzopyran-2-one, 4-hydroxy-3-(1-(4-nitrophenyl)-3-oxobutyl)- (12 Dec 1998) |
| acentric | <cell biology> This term refers to a chromosome or chromatid that lacks a centromere. This condition can result during crossing over in which the normal, centromere-containing segement is replaced by an inverted segment that lacks a centromere. (12 Mar 1998) |
| acentric chromosome | A fragment of a chromosome lacking a centromere and unable to attach to the mitotic spindle, therefore unable to take part in the division of a nucleus and randomly distributed in daughter cells. Synonym: acentric fragment. (05 Mar 2000) |
| acentric fragment | A fragment of a chromosome lacking a centromere and unable to attach to the mitotic spindle, therefore unable to take part in the division of a nucleus and randomly distributed in daughter cells. Synonym: acentric fragment. (05 Mar 2000) |
| acephal | <zoology> One of the Acephala. Origin: Gr.; priv. + head: cf. F. Acephale, LL. Acephalus. Source: Websters Dictionary (01 Mar 1998) |
| acephala | <zoology> That division of the Mollusca which includes the bivalve shells, like the clams and oysters; so called because they have no evident head. Formerly the group included the Tunicata, Brachiopoda, and sometimes the Bryozoa. See Mollusca. Origin: NL, fr. Gr, adj. Neut. Pl, headless. See Acephal. Source: Websters Dictionary (01 Mar 1998) |
| acephalan | Same as Acephal. <zoology> Belonging to the Acephala. Source: Websters Dictionary (01 Mar 1998) |
| acephali | 1. A fabulous people reported by ancient writers to have heads. 2. A Christian sect without a leader. Bishops and certain clergymen not under regular diocesan control. 3. A class of levelers in the time of K. Henry I. Origin: LL, pl. Of acephalus. See Acephal. Source: Websters Dictionary (01 Mar 1998) |
| acephalia | Congenital absence of the head. Synonym: acephalia, acephalism. Origin: G. A-priv. + kephale, head (05 Mar 2000) |
| acephalic migraine | A classic migraine episode in which the teichopsia is not followed by a headache. Synonym: migraine without headache. (05 Mar 2000) |
| acephaline | Denoting members of the protozoan suborder Acephalina (order Eugregarinida), characterised by simple noncompartmentalised bodies, that parasitise invertebrates. (05 Mar 2000) |
| acephalism | Congenital absence of the head. Synonym: acephalia, acephalism. Origin: G. A-priv. + kephale, head (05 Mar 2000) |
| acephalist | One who acknowledges no head or superior. Source: Websters Dictionary (01 Mar 1998) |