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trisect

 - 3 dictionary results

tri⋅sect

[trahy-sekt, trahy-sekt]
–verb (used with object)
to divide into three parts, esp. into three equal parts.

Origin:
1685–95; tri- + -sect < L sectus, ptp. of secāre to cut, sever; see section


tri⋅sec⋅tion, noun
tri⋅sec⋅tor, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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tri·sect   (trī'sěkt', trī-sěkt')   
tr.v.   tri·sect·ed, tri·sect·ing, tri·sects
To divide into three equal parts.
tri'sec'tion (trī'sěk'shən, trī-sěk'-) n., tri'sec'tor (trī'sěk'tər, trī-sěk'-) n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

trisect 
1664 (implied in trisection), from tri- "three" + L. sectus "cut," pp. of secare "to cut" (see section). Probably patterned on bisect.
Online Etymology Dictionary, © 2001 Douglas Harper
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