viroid
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vi·roid
(vī′roid′)n.
An infectious particle, similar to but smaller than a virus, that consists solely of a strand of RNA and is capable of causing disease in plants.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
viroid
(ˈvaɪrɔɪd)n
(Biochemistry) any of various infective RNA particles, smaller than a virus and known to cause some plant diseases
[C20: from vir(us) + -oid]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
vi•roid
(ˈvaɪ rɔɪd)n.
an infectious agent of plants similar to a virus but consisting of only a short, single strand of RNA without a protein coat.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| Noun | 1. | viroid - the smallest of viruses; a plant virus with its RNA arranged in a circular chromosome without a protein coat plant virus - a plant pathogen that is a virus consisting of a single strand of RNA |
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