Dictionary

viroid

noun vi·roid \ˈvī-ˌrid\

Definition of VIROID

:  any of two families (Pospiviroidae and Avsunviroidae) of subviral particles that consist of a small single-stranded RNA arranged in a closed loop without a protein shell and that replicate in their host plants where they may or may not be pathogenic
ADVERTISEMENT

Origin of VIROID

New Latin virus + English -oid
First Known Use: 1971

Browse

Next Word in the Dictionary: VirolaPrevious Word in the Dictionary: virlAll Words Near: viroid
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears