[ ree-oh-vahy-ruh s, ree-oh-vahy- ]
/ ˌri oʊˈvaɪ rəs, ˈri oʊˌvaɪ- /

noun, plural re·o·vi·rus·es.

any large virus of the family Reoviridae, having double-stranded RNA and a polyhedral capsid, including those causing infantile gastroenteritis.

Nearby words

  1. reorganization,
  2. reorganize,
  3. reorient,
  4. reorientation,
  5. reoviridae,
  6. rep,
  7. rep.,
  8. repack,
  9. repackage,
  10. repaglinide

Origin of reovirus

1955–60; r(espiratory) e(nteric) o(rphan) virus; coined by U.S. virologist Albert B. Sabin (born 1906) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for reovirus



1959, coined by U.S. medical researcher Dr. Albert B. Sabin (1906-1993), acronym for respiratory enteric orphan virus; "orphan" because it was not connected to any of the diseases it is associated with.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for reovirus


[ rē′ō-vīrəs ]


Any member of the genus Reovirus.



A genus of viruses that contain double-stranded RNA and are associated with various diseases in animals, including human respiratory and gastrointestinal infections.

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