[kos-tuh t, kaw-steyt]
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
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.
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012