re injection

Science Dictionary
injection  [%PREMIUM_LINK%]     (ĭn-jěk'shən)  Pronunciation Key 
  1. 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.

  2. 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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