Perpendicular

/ˌpɜːr.pənˈdɪk.jə.lər/

Meaning & Definition

noun

Something that is perpendicular, especially a line or a plane.

In geometry, the perpendicular is often used to define attributes of triangles.

adjective

At an angle of 90 degrees to a given line, plane, or surface.

The two lines are perpendicular to each other, forming a right angle.

Intersecting at or forming right angles.

The walls of the building are perpendicular to the ground.

Late Middle English: from Old French 'perpendiculaire', from Latin 'perpendicularis', from 'perpendere' meaning 'to hang down'.

perpendicular lines

Lines that intersect at a right angle.

perpendicular bisector

A line that divides another line into two equal parts at a right angle.

perpendicular to the surface

A line or direction that meets the surface at a right angle.

orthogonality

The quality of being perpendicular.

angle

The space between two intersecting lines or surfaces.

bisector

A line that divides an angle or a line segment into two equal parts.

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