trigone

Etymology
From, from , from. .

Noun

 * 1)  One of the thickenings of the cell wall at the angles where several cells join.
 * 2)  A smooth triangular area on the inner surface of the bladder, bounded by the apertures of the ureters and urethra; a similar region of a mitral valve
 * 1)  A smooth triangular area on the inner surface of the bladder, bounded by the apertures of the ureters and urethra; a similar region of a mitral valve
 * 1)  A smooth triangular area on the inner surface of the bladder, bounded by the apertures of the ureters and urethra; a similar region of a mitral valve

Related terms

 * trigonal

Noun

 * 1) stingray