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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.)
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