[ahr-kyoo-it, -eyt]
bent or curved like a bow.
Also, arcuated.

1620–30; < Latin arcuātus bent like a bow, curved (past participle of arcuāre), equivalent to arcu-, stem of arcus bow + -ātus -ate1

arcuately, adverb
subarcuate, adjective
subarcuated, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
arcuate (ˈɑːkjuːɪt, -ˌeɪt)
Also: arcuated shaped or bent like an arc or bow: arcuate leaves; arcuate fibres of the cerebrum
[C17: from Latin arcuāre, from arcusarc]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

"bent like a bow," 1620s, from L. arcuatus, pp. of arcuare "to bend like a bow," from arcus "bow" (see arc).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

arcuate ar·cu·ate (är'kyōō-ĭt, -āt')
Formed in the shape of an arc.

ar'cu·ate·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Strong waves make a cuspate delta a thinner, tooth-shaped version of the arcuate.
The external arcuate fibers wind across the lower part of the pyramid and olive and enter the inferior peduncle.
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