Ap·ter·al a.
1. Zool. Apterous.
2. Arch. 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.
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apteral
adj 1: having columns at one or both ends but not along the sides
[ant: peripteral]
2: (of insects) without wings [syn: apterous]