| AI | 1) Artificial Insemination 2) Aortic Insufficience(= -cy)(= Incompetence)... |
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| ACAC | acetyl-coenzyme A cocarboxylase; activated charcoal artificial cell |
| ACMT | artificial circus movement tachycardia |
| ACSF | artificial cerebrospinal fluid |
| ADI | Academy of Dentistry International; acceptable daily intake; AIDS-defining illness; allowable daily ... |
| Kohler illumination | <technique> The recommended type of optical microscope illumination in which the image of the lamp filament is focussed in the lower focal plane of the substage condenser. As opposed to collimated illumination in which the light emitting surface is imaged in the object. Collimated illumination requires even intensity across the light emitting surface but is preferable for certain types of microscopy. Kohler illumination gives even illumination on the object even if there are irregularities in the brightness of the light emitting surface. (18 Nov 1997) |
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| focal illumination | Illumination in which a beam of light is directed diagonally to an object so that it is brilliantly illuminated while the surrounding area is in shadow. Synonym: lateral illumination, oblique illumination. Kohler illumination, a method of illumination of microscopic objects in which the image of the light source is focused on the substage condenser diaphragm and the diaphragm of the light source is focused in the same plane with the object to be observed; maximises both the brightness and uniformity of the illuminated field. (05 Mar 2000) |
| lateral illumination | Illumination in which a beam of light is directed diagonally to an object so that it is brilliantly illuminated while the surrounding area is in shadow. Synonym: lateral illumination, oblique illumination. Kohler illumination, a method of illumination of microscopic objects in which the image of the light source is focused on the substage condenser diaphragm and the diaphragm of the light source is focused in the same plane with the object to be observed; maximises both the brightness and uniformity of the illuminated field. (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) |
| artificial heart | A mechanical pump used to replace the function of a damaged heart, either temporarily or as a permanent prosthesis. (05 Mar 2000) |