subvirus

[ sŭb-vīrəs ]

n. pl. sub•vi•rus•es

A viral protein or other substance smaller than a virus and having some viral properties.
Related formssub•viral (-rəl) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.