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tricostate

American  
[trahy-kos-teyt, -kaw-steyt] / traɪˈkɒs teɪt, -ˈkɔ steɪt /

adjective

Botany, Zoology.

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

tricostate British  
/ traɪˈkɒsteɪt /

adjective

  1. biology having three ribs or riblike parts

    tricostate leaves
"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

Etymology

Origin of tricostate

First recorded in 1860–65; tri- + costate

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.