picornavirus

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Related to Piconavirus: orthomyxovirus, reovirus, togavirus, Picornaviridae

picornavirus

[pē′kȯr·nə‚vī·rəs]
(virology)
A viral group made up of small (18-30 nanometers), ether-sensitive viruses that lack an envelope and have a ribonucleic acid genome; among subgroups included are enteroviruses and rhinoviruses, both of human origin.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.