Apterous
Pronunciation : Ap"ter*ous
Part of Speech : a.
Definition : 1. (Zo?l.)
Defn: Destitute of wings; apteral; as, apterous insects.
2. (Bot.)
Defn: Destitute of winglike membranous expansions, as a stem or petiole; -- opposed to atate.
Source : Webster's Unabridged Dictionary, 1913