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Zoology, Botany. formed with a carina; keellike.
Historical Examples

They have a carinated beak, pretty strongly curved, and a forked tail.
Reptiles and Birds Louis Figuier

A shell characterized by a keel or keels is said to be carinated.
A Conchological Manual George Brettingham Sowerby

The carina is thick, measured from the inner convex to the exterior surface, which is carinated; heel prominent.
A Monograph on the Sub-class Cirripedia (Volume 1 of 2) Charles Darwin

Male puparium white, narrow, carinated; length, about 1/36in.
An Account of the Insects Noxious to Agriculture and Plants in New Zealand W. M. Maskell

Shell with regular, carinated, approximating, longitudinal ribs.
Zoological Illustrations, Volume I William Swainson

The neural arches are also noticeably thicker than in semijunctus, and the centra are rounded inferiorly rather than carinated.
The Beaked Whales of the Family Ziphidae Frederick True

Male puparium white, elongated, carinated; length, about 1/20in.
An Account of the Insects Noxious to Agriculture and Plants in New Zealand W. M. Maskell

Male puparium rather longer than that of the female, the pellicle at one end; not carinated above.
An Account of the Insects Noxious to Agriculture and Plants in New Zealand W. M. Maskell

Spire with carinated plaits, the interstices with slender, crowded, transverse grooves.
Zoological Illustrations, Volume I William Swainson

Male puparium white, elongated, carinated; pellicle at one end.
An Account of the Insects Noxious to Agriculture and Plants in New Zealand W. M. Maskell

adjective
(biology) having a keel or ridge; shaped like a keel

carinated car·i·nat·ed (kār’ə-nā’tĭd)
adj.
Carinate.

carinate car·i·nate (kār’ə-nāt’, -nĭt)
adj.
Shaped like or having a carina or keel; ridged.