| aphthae minor | <dermatology> Roundish pearl-coloured specks or flakes in the mouth, on the lips, etc, terminating in white sloughs, better known as thrush and the specks are called aphthae. Synonym: thrush, candidiasis. Origin: Sing. Of Aphthae. L, fr. Gr. (mostly in pl, Hipp) an eruption, thrush, fr. To set on fire, inflame. (25 Jun 1999) |
|---|---|
| aphthoid | Resembling aphthae. (05 Mar 2000) |
| aphthosis | Any condition characterised by the presence of aphthae. (05 Mar 2000) |
| aphthous | Characterised by or relating to aphthae or aphthosis. (05 Mar 2000) |
| aphthous stomatitis | <dermatology> Roundish pearl-coloured specks or flakes in the mouth, on the lips, etc, terminating in white sloughs, better known as thrush and the specks are called aphthae. Synonym: thrush, candidiasis. Origin: Sing. Of Aphthae. L, fr. Gr. (mostly in pl, Hipp) an eruption, thrush, fr. To set on fire, inflame. (25 Jun 1999) |
| aphthous ulcer | <gastroenterology> A type of benign mouth ulcer often caused by injury to the mucosal lining of the oral cavity, viral infection or vitamin deficiency. (27 Sep 1997) |
| aphthovirus | <virology> A genus of the family picornaviridae causing foot-and-mouth disease in cloven-hoofed animals. (12 Dec 1998) |
| aphylactic | Rarely used term for pertaining to or characterised by aphylaxis. (05 Mar 2000) |
| aphylaxis | Rarely used term for lack of protection against disease. Synonym: nonimmunity. Origin: G. A-priv. + phylaxis, a guarding (05 Mar 2000) |
| aphyllous | <botany> Destitute of leaves, as the broom rape, certain euphorbiaceous plants, etc. Origin: Gr.; priv. + leaf. Source: Websters Dictionary (01 Mar 1998) |
| apiaceae | <botany> Also called umbelliferae, the parsley family, in the order apiales, includes carrots, hemlock, celery, parsnips, fennel (ferula), and plants used as herbs including anise, dill, and cumin. (12 Dec 1998) |
| apiaceous | <botany> Umbelliferous. Source: Websters Dictionary (01 Mar 1998) |
| apical | <anatomy> Relating to or located at the tip (an apex). (09 Oct 1997) |
| apical abscess | <dentistry> A dental abscess that occurs at the end of a root, caused by tooth decay which invades the pulp chamber of the tooth. Involvement of the pulp chamber can lead to destruction of the nerve and blood vessels which supply the tooth. These infections must be treated by root canal therapy (endodontics) or tooth extraction. (27 Sep 1997) |
| apical angle | The angle between two plane surfaces of a prism. Synonym: refracting angle of a prism. (05 Mar 2000) |