avirulent

[ ey-vir-yuh-luhnt, ey-vir-uh- ]

adjective

1. (of organisms) having no virulence, as a result of age, heat, etc.; nonpathogenic.

avirulent

/ æˈvɪrʊlənt /

adjective

1. (esp of bacteria) not virulent

Other Words From

• a·viru·lence noun

Word History and Origins

Origin of avirulent¹

First recorded in 1895–1900; a- ⁶ + virulent