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septi-

1.
a combining form meaning “seven,” used in the formation of compound words:
septilateral.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for septi-

septi-1

combining form
1.
seven: septivalent
Word Origin
from Latin septem

septi-2

combining form
1.
septum: septicidal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for septi-

before vowels sept-, word-forming element meaning "seven," from Latin septem (see seven).

Online Etymology Dictionary, © 2010 Douglas Harper
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septi- in Medicine

septi- pref.
Seven.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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