First Known Use: 15th century
Dictionary
reduction
noun re·duc·tion \ri-ˈdək-shən\
: 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
— re·duc·tion·al \-shnəl, -shə-nəl\ adjective
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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
Other Chemical Engineering Terms
Rhymes with REDUCTION
REDUCTION Defined for Kids
reduction
noun re·duc·tion \ri-ˈdək-shən\
Definition of REDUCTION for Kids
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 Dictionary
reduction
noun re·duc·tion \ri-ˈdək-shən\
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
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