| anodal duration tetanus | An obsolete term for the period of muscular contraction occurring at the anode when the electric circuit is closed. (05 Mar 2000) |
|---|---|
| anodal opening contraction | An obsolete term for the momentary contraction of a muscle under the influence of the positive pole when the circuit is broken. (05 Mar 2000) |
| anodal opening tetanus | An obsolete term for a tonic contraction in a muscle, to which the anode is applied, when the circuit is opened. (05 Mar 2000) |
| anode | <microscopy> The electrode to which a major flow of electrons takes place internally (as in a cathode-ray tube) or to which an external positive voltage supply is connected. (05 Aug 1998) |
| anode rays | Those originating in a gas discharge tube and moving in a direction opposite to that of cathode ray's; made up of positively charged ions. Synonym: positive rays. (05 Mar 2000) |
| anoderm | Lining of the anal canal immediately inferior to the dentate line and extending for about 1.5 cm. To the anal verge; it is devoid of hair and sebaceous and sweat glands, and so is not true skin, although it is squamous epithelium; it is pale, smooth, thin, and delicate, and shiny when stretched; it is especially vulnerable to abrasion (as from rough toilet paper), chemical irritants (soaps), and is well-provided with tactile and nociceptive (pain, itch) endings innervated by the inferior rectal (pudendal) nerve. (05 Mar 2000) |
| anodic | Of, pertaining to, or emanating from an anode. Synonym: anodic. (05 Mar 2000) |
| anodon | <zoology> A genus of fresh water bivalves, having to teeth at the hinge. Alternative forms: Anodonta. Origin: NL, fr. Gr. Toothless; priv. +, a tooth. Source: Websters Dictionary (01 Mar 1998) |
| anodontia | Congenital absence of the teeth; it may involve all (total anodontia) or only some of the teeth (partial anodontia, hypodontia), and both the deciduous and the permanent dentition, or only teeth of the permanent dentition. (12 Dec 1998) |
| anodontism | Congenital absence of tooth germ development. (05 Mar 2000) |
| anodyne | An externally-applied salve or medication that relieves pain ordiscomfort. (09 Oct 1997) |
| anoetic | Lacking the power of comprehension, as in severe and profound levels of mental retardation. Origin: G. Anoesia, from a-priv. + noos, perception (05 Mar 2000) |
| anogenital | <anatomy> Pertaining to the anus and external genitals. (18 Nov 1997) |
| anogenital band | The first indication of the perineum in the embryo. (05 Mar 2000) |
| anogenital raphe | In the male embryo the line of closure of the genital folds and swellings extending from the anus to the tip of the penis; it is differentiated in the adult into three regions: perineal raphe, scrotal raphe, and penile raphe. (05 Mar 2000) |