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Symbol, Mathematics
hyperbolic secant.
Origin of sech Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for sech
Historical Examples
  • I hopes we'll never see no sech tormentin' old Dimmycrat agin.

  • Chickens and turkeys, and surlines and ribs of beef, and sech truck!

    Freaks of Fortune Oliver Optic
  • sech a tide hadn't been knowd sence the oldest men could remember: the sea broke over all the mashes clear up to the farm-houses.

  • I never thought of sech a thing before; but, I vow, it's just as you said.

    Freaks of Fortune Oliver Optic
  • "sech a noise," grumbled the maid, as she trudged down the steps again.

  • There ain' no sech thing 's trouble 'n this world 'less ye look for it.

    Eben Holden Irving Bacheller
  • In view of which, the execootion you pulls off is yereby accepted as kindly meant, an' as sech is kindly took.

    Faro Nell and Her Friends Alfred Henry Lewis
  • But this here paper has nothin' to do with any sech proceedin' ez you imagine.

    Sundry Accounts Irvin S. Cobb
  • They've got sech tangled-up last names, I declare I can't keep 'em in my head.

    The Panchronicon Harold Steele Mackaye
  • There's no tellin'; I ain't no jedge of sech things, an' I'm an out-an-out American.

    Flamsted quarries Mary E. Waller
British Dictionary definitions for sech


/ʃɛk; sɛtʃ; ˈsɛkˈeɪtʃ/
hyperbolic secant; a hyperbolic function that is the reciprocal of cosh
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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sech in Science
Abbreviation of hyperbolic secant
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Related Abbreviations for sech


hyperbolic secant
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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