- the act of injecting.
- something that is injected.
- a liquid injected into the body, especially for medicinal purposes, as a hypodermic or an enema.
- state of being hyperemic or bloodshot.
- Mathematics. a one-to-one function.
- Also called insertion. Aerospace. the process of putting a spacecraft into orbit or some other desired trajectory.
Origin of injection
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- fluid injected into the body, esp for medicinal purposes
- something injected
- the act of injecting
- the act or process of introducing fluid under pressure, such as fuel into the combustion chamber of an engine
- (as modifier)injection moulding
- maths a function or mapping for which f(x) = f(y) only if x = ySee also surjection, bijection
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for postinjection
"forcing a fluid into a body" (with a syringe, etc.), early 15c., from Middle French iniection (14c.) or directly from Latin iniectionem (nominative iniectio), noun of action from past participle stem of inicere (see inject).
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
- A substance that is introduced into a organism, especially by means of a hypodermic syringe, as a liquid into the veins or muscles of the body.
- A function that maps each member of one set (the domain) to exactly one member of another set (the range). Compare bijection surjection.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.