from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One of the two chaffy basal bracts of a grass spikelet.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a basal, membranous, outer sterile husk or bract in the flowers of grasses (Poaceae) and sedges (Cyperaceae)
from the GNU version of the Collaborative International Dictionary of English
- n. The bracteal covering of the flowers or seeds of grain and grasses; esp., an outer husk or bract of a spikelet.
from The Century Dictionary and Cyclopedia
- n. A chaffy bract or bractlet characterizing the inflorescence of grasses, sedges, and other Glumaceæ.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. small dry membranous bract found in inflorescences of Gramineae and Cyperaceae
Latin glūma, husk; see gleubh- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
The term comes from the Latin gluma, meaning "husk of grain". It can also be seen in the French verb, glubere meaning "to peel". (Wiktionary)