trigone

listen to the pronunciation of trigone
الإنجليزية - التركية
(Tıp) Üçgen, trigonum
(Tıp) trigon
الإنجليزية - الإنجليزية
Thickenings of the cell wall at the angles where several cells join

The epidermal cells of the capsule wall of Jubulopsis, with nodose trigones at the angles, are very reminiscent of what one finds in Frullania spp.

{i} triangular area or part, trigonum (Anatomy)
A smooth triangular area on the inner surface of the bladder, limited by the apertures of the ureters and urethra
trigone
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