At or forming a right angle (to something).
In most houses, the walls are perpendicular to the floor.
Exactly upright; extending in a straight line toward the centre of the earth, etc.
Of a style of English Gothic architecture from the fourteenth and fifteenth centuries, marked by stiff and rectilinear lines, mostly vertical window-tracery, depressed or four-centre arch, fan-tracery vaulting, and panelled walls.
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.
A meal eaten at a tavern bar while standing up.
Derived from Middle French perpendiculaire, from Old French perpendiculer, from Latin perpendiculum (“plumb line”).
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