( a. )
Having three quadrants; thus, a triquadrantal triangle is one whose three sides are quadrants, and whose three angles are consequently right angles.
( a. )
Having three quadrants; thus, a triquadrantal triangle is one whose three sides are quadrants, and whose three angles are consequently right angles.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012