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noun
1.
the act of injecting.
2.
something that is injected.
3.
a liquid injected into the body, especially for medicinal purposes, as a hypodermic or an enema.
4.
state of being hyperemic or bloodshot.
5.
EXPANDMathematics. a one-to-one function.
6.
COLLAPSEAlso called insertion. Aerospace. the process of putting a spacecraft into orbit or some other desired trajectory.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Injection
is always a great word to know.
So is value. Does it mean:
| capable of being evenly divided, without remainder |
| quantity; number represented by a figure or symbol, a point in the range of a function |
Collins
World English Dictionary
| injection (ɪnˈdʒɛkʃən) | |
| —n | |
| 1. | fluid injected into the body, esp for medicinal purposes |
| 2. | something injected |
| 3. | the act of injecting |
| 4. | a. the act or process of introducing fluid under pressure, such as fuel into the combustion chamber of an engine |
| b. (as modifier): injection moulding | |
| 5. | maths surjection See also bijection a function or mapping for which f(x) = f(y) only if x = y |
| in'jective | |
| —adj | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary
injection in·jec·tion (ĭn-jěk'shən)
n.
The act of injecting a substance into a tissue, vessel, canal, or organ.
Something that is injected, especially a dose of liquid medicine injected into the body.
Congestion or hyperemia.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
injection  (ĭn-jěk'shən) Pronunciation Key
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The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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FOLDOC
Computing Dictionary
injection definition
1.
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.
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)
Word Dynamo Rating For Injection
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