(noun, adjective)


1. intersecting at or forming right angles

- the axes are perpendicular to each other

Similar word(s): normal, orthogonal, rectangular, right

2. at right angles to the plane of the horizon or a base line

- measure the perpendicular height

Similar word(s): steep, plumb, upended, unsloped, upright, straight, vertical

3. so steep as to be nearly veritcal

- the great perpendicular face of the cliff

Similar word(s): steep

Sentences with perpendicular as an adjective:

- In most houses, the walls are perpendicular to the floor.


1. a straight line at right angles to another line

Definition categories: shape

2. a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting

Definition categories: thought, gothic

3. a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point

Definition categories: man–made, cord

4. an extremely steep face

Definition categories: man–made, face