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
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 user also posted about a knife sheath before the sheath discussed in the case.
—
Olivia B. Waxman, Time, 11 July 2025
The sheath contained trace amounts of DNA, which was later linked to Kohberger, leading to his arrest.
—Christine Pelisek, People.com, 8 July 2025
Near Mogen's body, a KA-BAR knife sheath was discovered.
—Sasha Pezenik, ABC News, 4 July 2025
Prosecutors previously said in court filings and during hearings that a single source of male DNA was discovered on the sheath of a Ka-bar knife, the weapon believed to have been used in the stabbings, found near two of the victims.
—Taylor Romine, CNN Money, 3 July 2025
See All Example Sentences for sheath
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Olivia B. Waxman, Time, 11 July 2025
The sheath contained trace amounts of DNA, which was later linked to Kohberger, leading to his arrest.
—Christine Pelisek, People.com, 8 July 2025
Near Mogen's body, a KA-BAR knife sheath was discovered.
—Sasha Pezenik, ABC News, 4 July 2025
Prosecutors previously said in court filings and during hearings that a single source of male DNA was discovered on the sheath of a Ka-bar knife, the weapon believed to have been used in the stabbings, found near two of the victims.
—Taylor Romine, CNN Money, 3 July 2025
See All Example Sentences for sheath
Cite this Entry
“Sheath.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sheath. Accessed 21 Jul. 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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