alation

noun — 2 senses

alation

noun

Etymology Borrowed from French, from Latin alatus (“winged”).

1

The state of being winged.

2

A wing or wing-like structure.

Sculpture of strong wing-like structures or alations, initiated first below the smooth nuclear whorls as broad and somewhat flattened axial ridges, which on the sixth whorl become slightly oblique and expanded […]1940, Woods Hole Oceanographic Institution, Collected Reprints, page 117:

Derived terms: dealation

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.