viroid

viroid definition - medical

vi·roid (vīˈroidˌ)

noun
An infectious particle, smaller than a virus, that consists solely of a strand of RNA and is capable of causing disease in plants.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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