Webster’s Revised Unabridged Dictionary · 1913
Cecidomyia
Cec′i·do·my′i·a (sĕs′ĭ·dō·mī′ĭ·ȧ), n. [Nl., fr. Gr. κηκίς, κηκῖδος, a gall nut + μυῖα a fly.] (Zoöl.) A genus of small dipterous files, including several very injurious species, as the Hessian fly. See Hessian fly.