1
: a case for a blade (as of a knife)
2
: an investing cover or case of a plant or animal body or body part: such as
a
: the tubular fold of skin into which the penis of many mammals is retracted
b(1)
: the lower part of a leaf when surrounding the stem
(2)
: an ensheathing spathe
3
: any of various covering or supporting structures that resemble in appearance or function the sheath of a blade: such as
b
: a woman's close-fitting dress that is usually worn without a belt
c
British
: condom sense 1
Synonyms
Examples of sheath in a Sentence
the sheath of a sword
a piece of wire covered with a plastic sheath
Recent Examples on the Web
The black, silky sheath can easily stand on its own with minimal accessorizing or can be dressed up with some sparkly jewelry.
—
Rachel Sylvester, Glamour, 6 Jan. 2025
One was made by sliding a ring cut from a plastic bottle around an RPG warhead, filling this makeshift collar with quarter-inch stainless-steel ball bearings and sealing them against the warhead’s sheath with an electric heat gun.
—C.j. Chivers Robert Fass Krish Seenivasan Steven Szczesniak, New York Times, 31 Dec. 2024
Bessette-Kennedy is widely regarded as a pioneer of ’90s minimalism, and her silk crepe sheath with a cowl neckline upended the popularity of princessy, puff-sleeve brides, ushering in the craze for simplistic, slip-style wedding gowns.
—Hannah Malach, WWD, 17 Dec. 2024
Lovely aromas of ripe black fruits draw you in to experience complex layers of black cherry, blackberry, clove, and dark chocolate flavors wrapped in a velvety tannic sheath.
—Mike Desimone and Jeff Jenssen, Robb Report, 21 Nov. 2024
See all Example Sentences for sheath 
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Rachel Sylvester, Glamour, 6 Jan. 2025
One was made by sliding a ring cut from a plastic bottle around an RPG warhead, filling this makeshift collar with quarter-inch stainless-steel ball bearings and sealing them against the warhead’s sheath with an electric heat gun.
—C.j. Chivers Robert Fass Krish Seenivasan Steven Szczesniak, New York Times, 31 Dec. 2024
Bessette-Kennedy is widely regarded as a pioneer of ’90s minimalism, and her silk crepe sheath with a cowl neckline upended the popularity of princessy, puff-sleeve brides, ushering in the craze for simplistic, slip-style wedding gowns.
—Hannah Malach, WWD, 17 Dec. 2024
Lovely aromas of ripe black fruits draw you in to experience complex layers of black cherry, blackberry, clove, and dark chocolate flavors wrapped in a velvety tannic sheath.
—Mike Desimone and Jeff Jenssen, Robb Report, 21 Nov. 2024
See all Example Sentences for sheath
Dictionary Entries Near sheath
Cite this Entry
“Sheath.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sheath. Accessed 22 Jan. 2025.
Copy CitationKids Definition
Medical Definition
sheath
noun1
: an investing cover or case of a plant or animal body or body part: as
a
: the tubular fold of skin into which the penis of many mammals is retracted
b
: the connective tissue of an organ or part that binds together its component elements and holds it in place
2
sheathed
adjective
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