Definition of "perpendicular"
- noun
A device such as a plumb line that is used in making or marking a perpendicular line.
A line or plane that is perpendicular to another.
- adjective
At or forming a right angle (to).
- Sources
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A device such as a plumb line that is used in making or marking a perpendicular line.
A line or plane that is perpendicular to another.
At or forming a right angle (to).