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ultravirus

[uhl-truh-vahy-ruh s]
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noun, plural ul·tra·vi·rus·es.
  1. filterable virus.

Origin of ultravirus

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for ultravirus

ultravirus

noun
  1. a virus small enough to pass through the finest filter
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

ultravirus in Medicine

ultravirus

(ŭltrə-vī′rəs)
n.
  1. A filterable virus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.