noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   One of the thickenings of the cell wall at the angles where several cells join.

   "Leaf cells are about 25–30 μm, with thin walls and bulging trigones."

2. 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

Example

More examples

"Leaf cells are about 25–30 μm, with thin walls and bulging trigones."

Etymology

From French trigone, from Latin trigōnum, from Ancient Greek τρῐ́γωνον (trĭ́gōnon). Doublet of trigon and trigonon.

Related phrases

cell wall

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.