prairie orchid prai·rieorc·hid uncommon noun 1. orchid of boggy or wet lands of north central United States having racemes of very fragrant creamy or greenish white flowers Synonymsprairie orchidprairie white-fringed orchisHabenaria leucophaea Related words Broader terms fringed orchis WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
