casing

noun

Pronunciation: /ˈkeɪsɪŋ/

That which encloses or encases.
“Some people like to split the casing of a sausage before cooking so it doesn’t burst.”
“And, by your leave, for all the marvellous rich and sumptuous coat a weareth, he is very like a false jewel in a rich casing.”
The decorative trim around a door or window.
A metal pipe used to line the borehole of a well.
The state of letter case across a whole phrase or whole lines of text; the collective state/arrangement of uppercase and lowercase letters.
“The replacement string should have the same casing as the matched text.”
A tire.