Coeloglossum coe·log·los·sum uncommon noun 1. terrestrial orchids of cooler parts of North America and Europe: satyr orchid Synonymsgenus Coeloglossum Related words Word family Coeloglossum bracteatumCoeloglossum viride Broader terms monocot genus Parts Orchidaceae Part of satyr orchidfrog orchid WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.