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trigone

[trahy-gohn]

|

noun

Also trigonum. Anatomy.

a triangular part or area.
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.

Origin of trigone

1825–35; < French < Latin trigōnum triangle; see trigon

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

Examples from the Web for trigone

Historical Examples of trigone

The trigone was covered by a mass consisting of pointed papill.
Scientific American Supplement, No. 648, June 2, 1888.
Various
On the left side of the trigone a tumor with a broad base was seen, which resembled somewhat a strawberry in size and form.
Scientific American Supplement, No. 648, June 2, 1888.
Various

trigone in Medicine

trigone

[trī′gōn′]

n.

A triangle or trigonum.

The first three dominant cusps of an upper molar tooth.

Related formstri•go′nal adj.

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