glume

noun
\ˈglüm \

Definition of glume 

: a chaffy bract specifically : either of two empty bracts at the base of the spikelet in grasses

First Known Use of glume

1789, in the meaning defined above

History and Etymology for glume

New Latin gluma, from Latin, hull, husk; akin to Latin glubere to peel — more at cleave

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The first known use of glume was in 1789

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