1
: something that encases : material for encasing: such as
a
: an enclosing frame especially around a door or window opening
b
: a metal pipe used to case a well
d
: a membranous case for processed meat
2
: a space formed between two parallel lines of stitching through at least two layers of cloth into which something (such as a rod or string) may be inserted
Examples of casing in a Sentence
a casing for a shotgun shell
the egg of this bird has an unusually hard casing
Recent Examples on the Web
The Nutribullet Ultra crams a 1200-watt motor into its rather slim casing; that’s double the wattage of the Nutribullet Pro blender that’s a step down.
—
Noah Kaufman, Bon Appetit Magazine, 7 Oct. 2025
The shell casings in that gun matched the one taken from Kassandra's body during her autopsy.
—Chris Spargo, PEOPLE, 6 Oct. 2025
Traditional battery manufacturing encases electrodes in individual cell casings, which are then bundled into modules.
—Aman Tripathi, Interesting Engineering, 5 Oct. 2025
The bullet casing had the same tool markings – unique individual indentations that guns produce on casings once they have been expended – to a gun used in an unsolved murder in Kentucky in 1998.
—Jean Casarez, CNN Money, 5 Oct. 2025
See All Example Sentences for casing
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Noah Kaufman, Bon Appetit Magazine, 7 Oct. 2025
The shell casings in that gun matched the one taken from Kassandra's body during her autopsy.
—Chris Spargo, PEOPLE, 6 Oct. 2025
Traditional battery manufacturing encases electrodes in individual cell casings, which are then bundled into modules.
—Aman Tripathi, Interesting Engineering, 5 Oct. 2025
The bullet casing had the same tool markings – unique individual indentations that guns produce on casings once they have been expended – to a gun used in an unsolved murder in Kentucky in 1998.
—Jean Casarez, CNN Money, 5 Oct. 2025
See All Example Sentences for casing
Cite this Entry
“Casing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/casing. Accessed 10 Oct. 2025.
Copy CitationKids Definition
casing
noun
cas·ing
ˈkā-siŋ 
1
: something that encloses or surrounds
2
: a frame around a door or window opening
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