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circumvolution

[sur-kuh m-vuh-loo-shuh n] /ˌsɜr kəm vəˈlu ʃən/
noun
1.
the act of rolling or turning around:
planetary circumvolution.
2.
a single complete turn or cycle.
3.
a winding or folding about something:
the circumvolutions of a boa.
4.
a fold so wound:
the circumvolution of a snail shell.
5.
a winding in a sinuous course; a sinuosity:
the circumvolutions of the river.
6.
a roundabout course or procedure, or an instance of such:
The speaker's circumvolutions bored the audience to tears.
Origin
late Middle English
1400-1450
1400-50; late Middle English < Medieval Latin circumvolūtiōn- (stem of circumvolūtiō), equivalent to Latin circumvolūt(us) (past participle of circumvolvere to circumvolve) (circum- circum- + volū- past participle stem of volvere to roll + -tus past participle suffix) + -iōn- -ion
Related forms
circumvolutory
[suhr-kuh m-vuh-loo-tuh-ree] /ˌsʌr kəm vəˈlu tə ri/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for circumvolutory

circumvolution

/ˌsɜːkəmvəˈluːʃən/
noun
1.
the act of turning, winding, or folding around a central axis
2.
a single complete turn, cycle, or fold
3.
anything winding or sinuous
4.
a roundabout course or procedure
Derived Forms
circumvolutory, adjective
Word Origin
C15: from Medieval Latin circumvolūtiō, from Latin circumvolvere, from circum- + volvere to roll
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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