| airborne radioactivity | <radiobiology> Radioactivity in any chemical or physical form that is dissolved, mixed, suspended or otherwise entrained in air. (16 Dec 1997) |
|---|---|
| radioactivity | <radiobiology> The quality of emitting or the emission of corpuscular or electromagnetic radiations consequent to nuclear disintegration, a natural property of all chemical elements of atomic number above 83 and possible of induction in all other known elements. (18 Nov 1997) |
| induced radioactivity | artificial radioactivity |
| unit of radioactivity | See: Becquerel. (05 Mar 2000) |
| artificial | Made by art, not natural or pathological. Origin: L. Ars = art, facere = to make (18 Nov 1997) |
| artificial active immunity | See: acquired immunity. (05 Mar 2000) |
| artificial anatomy | The manufacture of models of anatomic structures, or the study of anatomy from such models. (05 Mar 2000) |
| artificial ankylosis | <orthopaedics> The surgical immobilisation of a joint (joint fusion). (27 Sep 1997) |
| artificial anus | An opening into the bowel, usually in the right or left flank, as a result of a colostomy. (05 Mar 2000) |
| artificial Carlsbad salt | A mixture of potassium sulfate, sodium chloride, sodium bicarbonate, and dried sodium sulfate; a laxative. (05 Mar 2000) |
| artificial classification | <zoology> Classification based on convenient or conspicuous diagnostic characters without attention to characters indicating relationship, often a classification based on a single arbitrarily chosen character, rather than an evaluation of the totality of characters. (09 Jan 1998) |
| artificial crown | A fixed restoration of the major part of the entire coronal part of a natural tooth; usually of gold, porcelain, or acrylic resin. (05 Mar 2000) |
| artificial dentition | <dentistry> A synthetic replacement for all of your teeth in either your upper or your lower jaw. (08 Jan 1998) |
| artificial eye | A curved disk of opaque glass or plastic, containing an imitation iris and pupil in the centre, inserted beneath the eyelids and supported by the orbital contents after evisceration or enucleation; it may be ready-made (stock) or custom-made. (05 Mar 2000) |
| artificial fever | 1. Obsolete synonym for pyrotherapy. 2. Treatment of fever. Synonym: artificial fever, induced fever. Origin: pyreto-+ G. Therapeia, treatment (05 Mar 2000) |