See also: Perpendicular
- (UK) IPA(key): /ˌpɜː.pənˈdɪk.jə.lə(ɹ)/ enPR: pû"pəndĭ'kyələ(r),
- (US) IPA(key): /pɝ.pɛnˈdɪk.ju.lɚ/, /pɝ.pənˈdɪk.jə.lɚ/
Audio (US) (file)
- (geometry) at or forming a right angle (to something).
- 2012 March 1, Henry Petroski, “Opening Doors”, in American Scientist, volume 100, number 2, page 112-3:
- A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place. Applying a force tangential to the knob is essentially equivalent to applying one perpendicular to a radial line defining the lever.
- Exactly upright; extending in a straight line toward the centre of the earth, etc.
at or forming a right angle to
perpendicular (plural perpendiculars)
- (geometry) a line or plane that is perpendicular to another
- a device such as a plumb line that is used in making or marking a perpendicular line
line or plane
- ⟂ (This symbol can be pronounced “perp” when used as a subscript of a letter representing a vector.)
perpendicular f (plural perpendiculares)