Simple Definition of reduction
: the act of making something smaller in size, amount, number, etc. : the act of reducing something
: an amount by which something is reduced
Full Definition of reduction
2 a : something made by reducing b : the amount by which something is reduced
3 [Spanish reducción, from Latin reduction-, reductio] : a South American Indian settlement directed by Jesuit missionaries
4 : meiosis 2; specifically : production of the gametic chromosome number in the first meiotic division
Examples of reduction in a sentence
a drastic reduction in size
Many voters want to see some reduction of the deficit.
There is a 20 percent reduction on selected items during this sale.
Origin of reduction
Middle English reduccion restoration, from Middle French reducion, from Late Latin & Latin; Late Latin reduction-, reductio reduction (in a syllogism), from Latin, restoration, from reducere
First Known Use: 15th century
REDUCTION Defined for Kids
Definition of reduction for Students
1 : the act of making something smaller or less : the state of being made smaller or less <a reduction in noise>
2 : the amount by which something is made smaller or less
Medical Definition of reduction
1: the replacement or realignment of a body part in normal position or restoration of a bodily condition to normal
2: the process of reducing by chemical or electrochemical means
3: the psychological diminishment of emotion or needs through activity or adjustment
4: meiosis; specifically : production of the gametic chromosome number in the first meiotic division
Learn More about reduction
Thesaurus: All synonyms and antonyms for "reduction" Medical Dictionary: Definition of "reduction" Spanish Central: Translation of "reduction" Nglish: Translation of "reduction" for Spanish speakers Britannica English: Translation of "reduction" for Arabic speakers Britannica.com: Encyclopedia article about "reduction"
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