The Collaborative International Dictionary
Trilateralness
Trilateral \Tri*lat"er*al\, a.[L. trilaterus; tri- (see Tri-) + latus, lateris, side: cf. F. trilat['e]ral. See Lateral.] (Geom.) Having three sides; being three-sided; as, a trilateral triangle. -- Tri*lat"er*al*ly, adv. -- Tri*lat"er*al*ness, n.