lunate

[ loo-neyt ]

Phonetic (Standard)IPA

adjective

Anatomy. the second bone from the thumb side of the proximal row of bones of the carpus.
a crescent-shaped, microlithic artifact mounted in a haft to form a composite tool, mostly Mesolithic in origin.

lunate

/ ˈluːneɪt /

Origin of lunate¹

First recorded in 1770–80, lunate is from the Latin word lūnātus crescent-shaped. See Luna, -ate ¹

Origin of lunate¹

C18: from Latin lūnātus crescent-shaped, from lūnāre, from lūna moon

Frustule elliptical; valve lunate, with straight ventral margin.

Valve lunate, with acute ends; ventral margin straight; ventral side very narrow.

Cl., to which as a variety Cleve unites Lewis' form, appears to resemble it only in the lunate marks.

The chief distinction lies in the lunate tail, which has a keel on either side at base, as in the mackerels.

It is of a narrow lunate form, highly convex, the disk destitute of sculpture, and the eyes prominent.

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