perpendicular

[ pur-puhn-dik-yuh-ler ]
/ ˌpɜr pənˈdɪk yə lər /

adjective

noun

Origin of perpendicular

1350–1400; < Latin perpendiculāris vertical, equivalent to perpendicul(um) plumb line (see perpend2, -i-, -cule2) + -āris -ar1; replacing Middle English perpendiculer(e) (adj. and adv.) < Old French perpendiculiere

SYNONYMS FOR perpendicular

1 standing. See upright.

OTHER WORDS FROM perpendicular

British Dictionary definitions for non-perpendicular

perpendicular
/ (ˌpɜːpənˈdɪkjʊlə) /

adjective

Also: normal at right angles to a horizontal plane
denoting, relating to, or having the style of Gothic architecture used in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting
upright; vertical

noun

geometry a line or plane perpendicular to another
any instrument used for indicating the vertical line through a given point
mountaineering a nearly vertical face

Derived forms of perpendicular

perpendicularity (ˌpɜːpənˌdɪkjʊˈlærɪtɪ), noun perpendicularly, adverb

Word Origin for perpendicular

C14: from Latin perpendiculāris, from perpendiculum a plumb line, from per- through + pendēre to hang

Scientific definitions for non-perpendicular

perpendicular
[ pûr′pən-dĭkyə-lər ]

Adjective

Intersecting at or forming a right angle or right angles.

Noun

A line or plane that is perpendicular to a given line or plane.