perpendicular
/ˌpɜrpənˈdɪkjələr/
noun
- A line or position that is at a 90-degree angle to another line or surface.
- The carpenter used a square to ensure the post was a true perpendicular.
- In geometry class, we learned how to drop a perpendicular from a point to a line.
- The two streets meet at a perpendicular, forming a perfect right angle.
adjective
- At an angle of 90 degrees to a given line, plane, or surface; standing or rising straight up.
- The wall must be perpendicular to the floor, or the building will be unstable.
- She drew a line perpendicular to the base of the triangle.
- The cliff rose almost perpendicular from the ocean, making it impossible to climb.
- Very steep; nearly vertical.
- We stared up at the perpendicular face of the mountain, feeling small.
- The roof of the old church was extremely perpendicular, shedding snow easily.
- The hiking trail became so perpendicular that we had to use our hands to climb.
Antonyms