| Ajellomyces capsulatum | The ascomycetous (perfect, sexual, teleomorph) state of Histoplasma capsulatum. Synonym: Emmonsiella capsulata. (05 Mar 2000) |
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| Ajellomyces dermatitidis | The perfect (teleomorph) state of the fungus Blastomyces dermatitidis; the (+) and (-) mating types cause disease with equal frequency. This sexual state is placed in the family Gymnoascaceae. (05 Mar 2000) |
| ajmaline | <chemical> An alkaloid found in the root of rauwolfia serpentina, among other plant sources. It is a class ia antiarrhythmic agent that apparently acts by changing the shape and threshold of cardiac action potentials. Pharmacological action: anti-arrhythmia agents. Chemical name: Ajmalan-17,21-diol, (17R,21alpha)- (12 Dec 1998) |
| ajowan oil | A volatile oil distilled from the fruit of Carum copticum, one of the sources of thymol; a carminative, aromatic, and expectorant. Synonym: ptychotis oil. (05 Mar 2000) |