reduction
nounUS, UK /ɹɪˈdʌk.ʃən/ · AU /ɹəˈdak.ʃən/
Etymology From Middle English reduccion, a borrowing from Old French reducion, from Latin reductiō, reductiōnem. Equivalent to reduce + -tion.
12 senses
- 1The act, process, or result of reducing.
- 2The amount or rate by which something is reduced, e.g. in price.
- 3A reaction in which electrons are gained and valence is…
- 4The process of rapidly boiling a sauce to concentrate it.
- 5The rewriting of an expression into a simpler form.
- 6A transformation of one problem into another problem…
- 7An arrangement for a far smaller number of parties, e.g.…
- 8A philosophical procedure intended to reveal the objects…
- 9A medical procedure to restore a fracture or dislocation…
- 10A reduced price of something by a fraction or decimal.
- 11The ratio of a material's change in thickness compared…
- 12A religious settlement created during a mission by…
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:
The amount or rate by which something is reduced, e.g. in price.
- A 5% reduction in robberies
Chemistry, Natural sciences, Physical sciences A reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen.
Mathematics, Sciences The rewriting of an expression into a simpler form.
Computing, Computing theory, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences A transformation of one problem into another problem, such as mapping reduction or polynomial-time reduction.
Entertainment, Lifestyle, Music An arrangement for a far smaller number of parties, e.g. a keyboard solo based on a full opera.
Human sciences, Phenomenology, Philosophy, Sciences A philosophical procedure intended to reveal the objects of consciousness as pure phenomena. (See phenomenological reduction.)
Medicine, Sciences 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
- open reduction and internal fixation
A reduced price of something by a fraction or decimal.
Arts, Crafts, Engineering, Hobbies, Lifestyle, Metallurgy, Metalworking, Natural sciences, Physical sciences 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.2016, Gordon L. Robertson, Food Packaging Principles and Practice, 3rd edition, page 191:
Catholicism, Christianity, Roman Catholicism Historical 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.
- Derived terms
64 terms
amnioreduction, autoreduction, beta reduction, bioreduction, Birch reduction, boob reduction, breast reduction, carboreduction, carbothermal reduction, chemoreduction, Clemmensen reduction, Cook reduction, cytoreduction, decimal reduction time, deuteroreduction, eidetic reduction, electroreduction, eta reduction, harm reduction, hazard reduction burn, hydroreduction, irreduction, Karp reduction, ketoreduction, leucoreduction, leukoreduction, magnesiothermic reduction, mapping reduction, Meerwein-Ponndorf-Verley reduction, monoreduction, nitroreduction, noise reduction, nonreduction, orchestrated objective reduction, organic reduction, overreduction, oxidation-reduction, oxidoreduction, phenomenological reduction, photoreduction, polynomial reduction, polynomial-time reduction, postreduction, prereduction, prolongational reduction, pseudoreduction, reductional, reduction division, reduction drive, reduction furnace, reduction in force, reductionism, reductionist, reduction set, reduction to the absurd, rereduction, semireduction, seroreduction, spot reduction, tax reduction, time-span reduction, transduction, Turing reduction, vowel reduction- Related terms
- reducible