Apteral(a.)
- Without lateral columns; -- applied to buildings which have no series of columns along their sides, but are either prostyle or amphiprostyle, and opposed to peripteral.
Apterism
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Apterisms
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Apterous(a.)
- Destitute of wings; apteral; as, apterous insects.
Apterous(a.)
- Destitute of winglike membranous expansions, as a stem or petiole; -- opposed to alate.