reductions

Noun

reduction (countable and uncountable, plural reductions)

1. The act, process, or result of reducing.
   • With the cutting out of the previous recovery times for electrification work, curtailment of station times and acceleration, considerable reductions have been made in the overall schedules.1961 January, “The North-East London electrification of the Great Eastern Line”, in Trains Illustrated, page 18

   Synonyms:

   decline

2. The amount or rate by which something is reduced, e.g. in price.
   • A 5% reduction in robberies

   Synonyms:

   extract

3. A reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen.
4. The process of rapidly boiling a sauce to concentrate it.
5. The rewriting of an expression into a simpler form.
6. A transformation of one problem into another problem, such as mapping reduction or polynomial-time reduction.

See all 12 meanings of reduction