trigone

[ trahy-gohn ]
/ ˈtraɪ goʊn /

noun

Also trigonum. Anatomy.
  1. a triangular part or area.
  2. the area on the floor of the urinary bladder between the opening of the urethra in front and the two ureters at the sides.
Botany. a thickened area where three or more plant cells come together.

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Origin of trigone

1825–35; <French <Latin trigōnum triangle; see trigon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for trigone

Medical definitions for trigone

trigone
[ trīgōn′ ]

n.

A triangle or trigonum.
The first three dominant cusps of an upper molar tooth.

Other words from trigone

tri•gonal adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.