sheath

[ sheeth ]
/ ʃiθ /

noun, plural sheaths [sheeth z] /ʃiðz/.

verb (used with object)

Origin of sheath

before 950; Middle English s(c)heth(e), Old English scēath; cognate with German Scheide; see shed2

Related forms

sheath·less, adjectivesheath·like, sheath·y, adjective

Can be confused

sheath sheathe
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sheath

British Dictionary definitions for sheath

sheath

/ (ʃiːθ) /

noun plural sheaths (ʃiːðz)

verb

(tr) another word for sheathe

Word Origin for sheath

Old English scēath; related to Old Norse skeithir, Old High German sceida a dividing; compare Old English scādan to divide
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

Medicine definitions for sheath

sheath

[ shēth ]

n. pl. sheaths (shēðz, shēths)

An enveloping tubular structure, such as the tissue that encloses a muscle or nerve fiber.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for sheath

sheath

[ shēth ]

An enveloping tubular structure, such as the base of a grass leaf that surrounds the stem or the tissue that encloses a muscle or nerve fiber.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.