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rhizoctonia

American  
[rahy-zok-toh-nee-uh] / ˌraɪ zɒkˈtoʊ ni ə /

noun

  1. any of various soil-inhabiting fungi of the genus Rhizoctonia, some species of which are destructive to cultivated plants, causing damping off of seedlings, foliage blight, root and stem cankers, and rot of storage organs.

Etymology

Origin of rhizoctonia

< New Latin (1815), equivalent to Greek rhizo- rhizo- + któn ( os ) murder (akin to kteínein to kill, slay) + New Latin -ia -ia; so called from its pathogenic activity

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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.