avirulence

a·vir·u·lent

[ey-vir-yuh-luhnt, ey-vir-uh-]
adjective
(of organisms) having no virulence, as a result of age, heat, etc.; nonpathogenic.

Origin:
1895–1900; a-6 + virulent

a·vir·u·lence, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
avirulent (æˈvɪrʊlənt) [Click for IPA pronunciation guide]
 
adj
(esp of bacteria) not virulent

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Avirulence is always a great word to know.
So is doohickey. Does it mean:
a gadget; dingus; thingumbob.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
American Heritage
Medical Dictionary

avirulent a·vir·u·lent (ā-vēr'yə-lənt, ā-vēr'ə-)
adj.
Not virulent.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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