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What (who) is injection - definition
WIKIMEDIA DISAMBIGUATION PAGE
Inject; Injected; Injections; Injects; Injecting; Injection (disambiguation)
injection
n.
1) to administer, give an injection
2) to get an injection
3) a lethal injection
4) a hypodermic; intradermal; intramuscular; intravenous; subcutaneous injection
injection
1. <mathematics> A function, f : A -> B, is injective or
one-one, or is an injection, if and only if
for all a,b in A, f(a) = f(b) => a = b.
I.e. no two different inputs give the same output (contrast
many-to-one). This is sometimes called an embedding. Only
injective functions have left inverses f' where f'(f(x)) = x,
since if f were not an injection, there would be elements of B
for which the value of f' was not unique. If an injective
function is also a surjection then is it a bijection.
2. <reduction> An injection function is one which takes
objects of type T and returns objects of type C(T) where C is
some type constructor. An example is
f x = (x, 0).
The opposite of an injection function is a projection
function which extracts a component of a constructed object,
e.g.
fst (x,y) = x.
We say that f injects its argument into the data type and fst
projects it out.
(1995-03-14)
injection
¦ noun
1. an act of injecting or being injected.
2. something that is injected.
3. short for fuel injection.
Examples of use of injection
1. He said that medicines like injection Cetrexone, injection Velosef /Cap Velosef, injection Pethadine/ Tremandol and Haemecele infusion.
2. You can take an anti–tetanus injection but not an anti–rabies injection.
3. Supreme Court reviewed Kentucky‘s lethal injection procedure.
4. The federal government uses only lethal injection.
5. Supreme Court found lethal injection constitutional.