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Word: injection
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Meaning:
Noun:
- specifically|medicine Something injected subcutaneously, intravenously, or intramuscularly by use of a syringe and a needle.
- mathematics A relation on sets ''(X,Y)'' that associates each element of ''Y'' with at most one element of ''X''.
- set theory A function that maps distinct x in the domain to distinct y in the codomain; formally, a ''f'': ''X'' → ''Y'' such that f(a) = f(b) implies a = b for any a, b in the domain.
- The act of injecting, or something that is injected.
Source: Wiktionary
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