tricostate

tricostate [trahy-kos-teyt, -kaw-steyt] Word Origin adjective Botany, Zoology.

1. having three ribs, costae, or raised lines.

Origin of tricostate First recorded in 1860–65; tri- + costate Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 British Dictionary definitions for tricostate tricostate adjective

1. biology having three ribs or riblike partstricostate leaves

Word Origin for tricostate C19: from tri- + costate 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