- The definition of a reduction is a decrease or a lessening in amount, or the amount by which something decreases or goes down.
- When the income tax rate is cut, this is an example of a time when you get a reduction in taxes.
- When a price goes down by 10 percent, this is an example of a 10 percent reduction.
reduction definition by Webster's New World
- a reducing or being reduced
- anything made or brought about by reducing, as a smaller copy, lowered price, sauce of concentrated liquid, etc.
- the amount by which anything is reduced
Origin: Late Middle English reduccion ; from Middle French reduction ; from Classical Latin reductio ; from reductus, past participle of reducere
- reductional adjective
reduction definition by American Heritage Dictionary
- The act or process of reducing.
- The result of reducing: a reduction in absenteeism.
- The amount by which something is lessened or diminished: a reduction of 12 percent in violent crime.
- Biology The first meiotic division, in which the chromosome number is reduced. Also called reduction division.
- Chemistry a. A decrease in positive valence or an increase in negative valence by the gaining of electrons.b. A reaction in which hydrogen is combined with a compound.c. A reaction in which oxygen is removed from a compound.
- Mathematics a. The canceling of common factors in the numerator and denominator of a fraction.b. The converting of a fraction to its decimal equivalent.c. The converting of an expression or equation to its simplest form.
Origin: Middle English reduccion, restoration, from Old French reduction, from Latin reductiō, reductiōn-, from reductus, past participle of redūcere, to bring back; see reduce.
- re·ducˈtion·al adjective
reduction - Cultural Definition
reduction - Medical Definition
- The act, process, or result of reducing.
- The amount by which something is lessened or diminished.
- Restoration of an injured or dislocated part to its normal anatomical relation by surgery or manipulation.
- The first meiotic division, in which the chromosome number is reduced. Also called reduction division, reduction of chromosomes.
- A decrease in positive valence or an increase in negative valence by the gaining of electrons.
- A reaction in which hydrogen is combined with a compound.
- A reaction in which oxygen is removed from a compound.
- reductional adjective
reduction - Science Definition
- The changing of a fraction into a simpler form, especially by dividing the numerator and denominator by a common factor. For example, the fraction 8/12 can be reduced to 4/6 , which can be further reduced to 2/3 , in each case by dividing both the numerator and denominator by 2.
- A chemical reaction in which an atom or ion gains electrons, thus undergoing a decrease in valence. If an iron atom having a valence of +3 gains an electron, the valence decreases to +2. Compare oxidation.