Definition of perpendicular
(Entry 1 of 2)
1a
: standing at right angles to the plane of the horizon : exactly upright
b
: being at right angles to a given line or plane
2
: extremely steep : precipitous
3
often capitalized
: of or relating to a medieval English Gothic style of architecture in which vertical lines predominate
4
: relating to, uniting, or consisting of individuals of dissimilar type or on different levels
perpendicular
nounDefinition of perpendicular (Entry 2 of 2)
: a line at right angles to a line or plane (as of the horizon)
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Time Traveler for perpendicular
The first known use of perpendicular was in the 14th century
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