adj.
1.intersecting at or forming right angles
2.at right angles to the plane of the horizon or a base line
3.extremely steep perpendicular n.
1.a straight line at right angles to another line
2.a Gothic style in 14th and 15th century England
3.a cord from which a metal weight is suspended pointing directly to the earth's center of gravity
4.an extremely steep face
Idiom of the Day
(not one's) cup of tea
(not) something that one enjoys
Modern art is not my cup of tea so I will stay home and not go to the art gallery.