[proh-vahy-ruh s, proh-vahy-]

Origin of provirus

1945–50; pro-1 + virus, on the model of prophage Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for provirus


  1. the inactive form of a virus in a host cell
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

provirus in Medicine


[prōvī′rəs, prō-vī-]
n. pl. pro•vi•rus•es
  1. The precursor or latent form of a virus that is capable of being integrated into the genetic material of a host cell and being replicated with it.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.