Etymology
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reovirus (n.)

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

updated on July 06, 2021

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Definitions of reovirus from WordNet

reovirus (n.)
any of a group of non-arboviruses including the rotavirus causing infant enteritis;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.