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perpendicular

per·pen·dic·u·lar

perpendicular

 
pronunciation:
puhr pn dIk y lr
features:
Word Parts
part of speech: adjective
definition 1: at a right angle to.
This pole is perpendicular to the ground.
synonyms:
square
definition 2: straight up and down.
That cliff is a dangerous, perpendicular climb.
synonyms:
plumb, upright, vertical
antonyms:
horizontal
similar words:
erect, square, standing
derivations: perpendicularly (adv.), perpendicularity (n.)
Word Parts
The word perpendicular contains the following part:
-ar1 Latin adjective-forming suffix that means of, pertaining to, or resembling
Show wordsHide wordsMore about this word part:
The suffix -ar1attaches to bound Latinate bases to form adjectives. Most adjectives ending in -ar1 combine with the suffix -ity to form nouns ending in -arity. -ar1 is a variant of -al2, -ial that for phonological reasons occurs with bases ending in 'l'.