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Picornaviridae

[pē-kôr′nə-vîr′ĭ-dē]

n.

A family of very small nonenveloped viruses having a core of single-stranded RNA and including the polioviruses, coxsackieviruses, and echoviruses.

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