at an angle of 90° to a given line, plane, or surface or to the ground
dormers and gables that extend perpendicular to the main roofline
denoting the latest stage of English Gothic church architecture, prevalent from the late 14th to mid 16th centuries and characterized by broad arches, elaborate fan vaulting, and large windows with vertical tracery
the handsome Perpendicular church of St Andrew
the Perpendicular style
a straight line at an angle of 90° to a given line, plane, or surface
at each division draw a perpendicular representing the surface line