trigone
(redirected from habenular trigone)Also found in: Dictionary, Medical.
Related to habenular trigone: habenular commissure, Habenular nucleus
trigone
[′trī‚gōn] (anatomy)
A triangular area inside the bladder limited by the openings of the ureters and urethra.
(botany)
A thickening of plant cell walls formed when three or more cells adjoin.