triquadrantal (not comparable)
- (geometry) Having three quadrants.
- A triquadrantal triangle is one whose three sides are quadrants, and whose three angles are consequently right angles.
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.