R factor

R factor

noun
a genetic component of some bacteria that provides resistance to antibiotics and can be transferred from one bacterium to another by conjugation.


Origin:
1960–65; r(esistance) factor
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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R factor is always a great word to know.
So is lollapalooza. Does it mean:
a chattering or flighty, light-headed person.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
American Heritage
Medical Dictionary

R factor n.
See resistance plasmid.

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