chal|u|meau «SHAL yuh MOH; French sha loo MOH», noun.Music.
1. the lowest register in the clarinet.
2. a shawm.
╂[< French chalumeau < Old French chalemel < Late Latin calamellus a little reed < Latin calamus reed. See etym. of doublet shawm. (Cf. ↑shawm)]