Cleav·ers n. Bot. A species of Galium (Galium Aparine), having a fruit set with hooked bristles, which adhere to whatever they come in contact with; -- called also, goose grass, catchweed, etc.
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Galium aparine
n : annual having the stem beset with curved prickles; North
America and Europe and Asia [syn: cleavers, clivers,
goose grass, catchweed, spring cleavers]