Other forms: wrappers
A wrapper is the paper or plastic around a single item. A sweet wrapper, chocolate wrapper, drop the wrapper.
It is the outer layer of one thing, where packaging is the general word — sweet wrappers are among the most common items found in litter counts. A cigar wrapper is the outermost leaf and largely determines the flavour. In computing, a wrapper is code that surrounds other code to make it easier to use, which is the same idea exactly. Note wrapping, as in wrapping paper.
1nounwrapperThe paper or plastic around a single item.
“He threw the chocolate wrapper in the bin and licked his fingers.”
2nouncodeCode that surrounds other code to simplify it.
“She wrote a simple wrapper so the old library could be used from the new app.”
wrapper is an outer covering.
Wrap plus -er, attested in Middle English. The verb wrap has no certain earlier history, which is unusual for a word this plain.
Middle English
wrappere
English, today
wrapper
From Middle English wrappere, equivalent to wrap + -er.
Etymology from Wiktionary, CC BY-SA