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viridian
viridity
virile
virilism
virility
virilocal
virion
viro-
viroid
virology
virtu
virtual
virtual assistant
virtual community
virtual disk
virtual focus
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viroid
vi·roid [ v ròyd ] (plural vi·roids)


noun 
Definition:
 
infectious agent: an infectious RNA particle that resembles a virus, but is smaller. It causes diseases in plants.
[Mid-20th century. <virus]
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