costate

[kos-tuh t, kaw-steyt]

adjective

Anatomy. having ribs.

(of mosses) having a midrib or costa.

Origin of costate

1810–20; < Latin costātus having ribs, ribbed, equivalent to cost(a) rib + -ātus -ate¹

Related formsmul·ti·cos·tate, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for costate

Historical Examples of costate

Shell ovate, spinulate and costate, nearly twice as broad as long.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index
Ernst Haeckel

British Dictionary definitions for costate

costate

adjective

anatomy having ribs

(of leaves) having veins or ridges, esp parallel ones

Word Origin for costate

C19: from Late Latin costātus, from Latin costa rib

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