perpendicular🔊

(geometry) At or forming a right angle (to something). +

Exactly upright; extending in a straight line toward the centre of the earth, etc.

Independent of or irrelevant to each other; orthogonal.

(geometry) A line or plane that is perpendicular to another.

A device such as a plumb line that is used in making or marking a perpendicular line.

(obsolete) A meal eaten at a tavern bar while standing up.