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[proh-feyj] /ˈproʊˌfeɪdʒ/
noun, Microbiology.
a stable, inherited form of bacteriophage in which the genetic material of the virus is integrated into, replicated, and expressed with the genetic material of the bacterial host.
Origin of prophage
1950-55; shortening of French probactériophage; see pro-1, bacteriophage Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for prophage


a virus that exists in a bacterial cell and undergoes division with its host without destroying it Compare bacteriophage
Word Origin
C20: by contraction from French probactériophage; see pro-², bacteriophage
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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prophage in Medicine

prophage pro·phage (prō'fāj')
The latent form of a bacteriophage in which viral genes are incorporated into bacterial chromosomes disrupting the bacterial cell. Also called probacteriophage.

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