Entry 2 senses Webster, 1913 nympha · nym·pha · IPA /ˈnɪmfə/ 01 n. Same as Nymph, 3. pl. Nymphae ((#)) 1. Same as Nymph, 3.(Zool.) See: Nymph 2. Two folds of mucous membrane, within the labia, at the opening of the vulva.(Anat.)