perpendicular
[adjective]
Synonyms: upright, at right angles to, on end, plumb, straight, vertical

---

Antonyms: horizontal
Related Words: stand-up, straight

[TahlilGaran] English Synonym Dictionary ▲

I. per‧pen‧dic‧u‧lar¹ /ˌpɜːpənˈdɪkjələ◂, ˌpɜːpənˈdɪkjʊlə◂ $ ˌpɜːrpənˈdɪkjələr◂/ adjective
[Date: 1300-1400; Language: Old French; Origin: perpendiculer, from Latin, from perpendiculum 'plumb line', from pendere 'to hang']

1. not leaning to one side or the other but exactly vertical ⇒ vertical, horizontal:
a perpendicular line
a perpendicular wall of rock

2. be perpendicular to something if one line is perpendicular to another line, they form an angle of 90 degrees Synonym : at right angles to:
a road perpendicular to the highway

3. Perpendicular in the style of 14th- and 15th-century English churches, which are decorated with straight upright lines
—perpendicularly adverb

[TahlilGaran] Dictionary of Contemporary English ▲

II. perpendicular² noun [singular]
an exactly vertical position or line

[TahlilGaran] Dictionary of Contemporary English ▲

perpendicular
adj.
I. pointing straight up
VERBS be
ADV. almost, nearly an almost perpendicular staircase

[TahlilGaran] Collocations Dictionary ▲

perpendicular
II. at an angle of 90° to sth
VERBS be
ADV. exactly | almost | mutually two mutually perpendicular directions
PREP. to The axis of the moon will now be exactly perpendicular to that of the earth.

[TahlilGaran] Collocations Dictionary ▲