G0155200 (glo͞om)n.1. A bract, usually one of two, at the base of a grass spikelet.2. A bract in a sedge spikelet, usually subtending a floret.[Latin glūma, husk; see gleubh- in Indo-European roots.]glu·ma′ceous(glo͞o-mā′shəs) adj.EncyclopediaSeeglume