an antibiotic produced by the bacterium Streptomyces nodosus and used in the treatment of fungal infections.
amphoterism amphoterism am·pho·ter·ism (ām’fə-těr’ĭz’əm, ām-fŏt’ə-rĭz’əm) n. The quality of exhibiting the characteristics of an acid and a base and having the capacity to react either as an acid or a base.
- Amphotropic virus
amphotropic virus amphotropic virus am·pho·trop·ic virus (ām’fə-trŏp’ĭk, -trō’pĭk) n. An oncornavirus that does not produce disease in its natural host, but does replicate in tissue culture cells of the host species and in cells from other species.
a broad-spectrum semisynthetic penicillin, C 16 H 19 N 3 O 4 S, effective against certain susceptible Gram-positive and Gram-negative bacteria. noun a semisynthetic penicillin used to treat various infections ampicillin am·pi·cil·lin (ām’pĭ-sĭl’ĭn) n. A semisynthetic of penicillin effective against gram-negative and gram-positive bacteria and used in treating infections of the intestinal, urinary, and respiratory […]