reduction

Meanings

1. 1
   noun

   the act of reducing complexity

   The reduction of the equation was simple.

2. 2
   noun

   the act of decreasing or reducing something

   The reduction in crime was credited to the new mayor.

3. 3
   noun

   any process in which electrons are added to an atom or ion, as by removing oxygen or adding hydrogen

   The reduction reaction replaced the chlorine atom with a hydrogen.

4. 4
   noun

   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.

5. 5
   noun

   The amount or rate by which something is reduced, e.g. in price.

   A 5% reduction in robberies

6. 6
   noun

   A medical procedure to restore a fracture or dislocation to the correct alignment, usually with a closed approach but sometimes with an open approach (surgery).

   closed reduction

7. 7
   noun

   The ratio of a material's change in thickness compared to its thickness prior to forging and/or rolling.

   The final stage of thickness reduction (typically 90% from about 2mm to <0.2mm) is carried out by cold rolling.

8. 8
   noun

   A religious settlement created during a mission by Spanish or Portuguese colonists with the intent of evangelizing Christianity to the local population.

   Spanish reductions in Mexico were common during the 18th century.

Etymology

From Middle English reduccion, a borrowing from Old French reducion, from Latin reductiō, reductiōnem. Equivalent to reduce + -tion.