Etymology
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rotavirus (n.)

wheel-shaped virus causing inflammation of the lining of the intestines, 1974, from Latin rota "wheel" (see rotary) + virus.

updated on July 30, 2013

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Definitions of rotavirus from WordNet

rotavirus (n.)
the reovirus causing infant enteritis;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.