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jointworm

[joint-wurm] /ˈdʒɔɪntˌwɜrm/
noun
1.
the larva of any of several chalcid flies of the family Eurytomidae, especially of the genus Harmolita, that feeds within the stems of grasses, often causing a gall near the first joint.
Also called strawworm.
Origin of jointworm
1700-1710
First recorded in 1700-10; joint + worm
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for jointworm

jointworm

/ˈdʒɔɪntˌwɜːm/
noun
1.
(US) the larva of chalcid flies of the genus Harmolita, esp H. tritici, which form galls on the stems of cereal plants
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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