injection

in·jec·tion

noun \in-ˈjek-shən\

Definition of INJECTION

1

a : an act or instance of injecting b : the placing of an artificial satellite or a spacecraft into an orbit or on a trajectory; also : the time or place at which injection occurs

2

: something (as a medication) that is injected

3

: a mathematical function that is a one-to-one mapping — compare bijection, surjection

Examples of INJECTION

1. The medicine cannot be taken orally; it must be given by injection.
2. an injection of a painkiller
3. The struggling company needed an injection of cash.

First Known Use of INJECTION

15th century

Rhymes with INJECTION

abjection, advection, affection, bisection, collection, complexion, confection, connection, convection, correction, cross section, C-section, defection, deflection, dejection, detection, direction, ejection, election, erection, infection, inflection, inspection, midsection, objection, perfection, prelection, projection, protection, refection, reflection, rejection, resection, selection, subjection, subsection, trajection, transection, trisection