trigone

trigone

 [tri´gōn]

1. triangle.

2. the first three cusps of an upper molar tooth. adj., adj trigo´nal.

trigone of bladder a triangular region of the wall of the urinary bladder, an area in which the muscle fibers are closely adherent to the mucosa; its three angles correspond with the orifices of the ureters and urethra. Called also vesical trigone.

carotid trigone the triangular area bounded by the posterior belly of the digastric muscle, the sternocleidomastoid muscle, and the anterior midline of the neck. Called also superior carotid triangle.

olfactory trigone the triangular area of gray matter between the roots of the olfactory tract.

vesical trigone trigone of bladder.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

tri·gone

(trī'gōn), [TA]

1. Synonym(s): trigonum

2. The first three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.

[L. trigonum, fr. G. trigōnon, triangle]

Farlex Partner Medical Dictionary © Farlex 2012

tri·gone

(trī'gōn) [TA]

1. Synonym(s): trigonum.

2. The first three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.

[L. trigonum, fr. G. trigōnon, triangle]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

tri·gone

(trī'gōn) [TA]

First three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.

[L. trigonum, fr. G. trigōnon, triangle]

Medical Dictionary for the Dental Professions © Farlex 2012