reductionとは意味・読み方・使い方

発音

• IPA^(key): /ɹɪˈdʌkʃən/
• (Malaysia, Singapore) IPA^(key): /ɹiˈdɑk.ʃən/
• 韻: -ʌkʃən
• ハイフネーション: re‧duc‧tion

名詞

reduction (countable かつ uncountable, 複数形 reductions)

1. The act, process, or result of reducing.
   • 1961 January, “The North-East London electrification of the Great Eastern Line”, in Trains Illustrated, page 18:

     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.

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

   A 5% reduction in robberies

4. (chemistry) A reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen.
5. (cooking) The process of rapidly boiling a sauce to concentrate it.
6. (mathematics) The rewriting of an expression into a simpler form.
8. (computability theory) a transformation of one problem into another problem, such as mapping reduction or polynomial reduction.
9. (music) An arrangement for a far smaller number of parties, e.g. a keyboard solo based on a full opera.
10. (philosophy, phenomenology) A philosophical procedure intended to reveal the objects of consciousness as pure phenomena. (See phenomenological reduction.)
11. (medicine) A medical procedure to restore a fracture or dislocation to the correct alignment.

    Synonym: taxis

12. (paying) A reduced price of something by a fraction or decimal.

同意語

• (act, process, または result of reducing): decline, lessening; See also Thesaurus:diminution
• (amount by which something is reduced): extract, reduction; See also Thesaurus:decrement

反意語

• (act, process, または result of reducing): elevation, expansion, increase, promotion; See also Thesaurus:augmentation
• (amount by which something is reduced): addition, supplement; See also Thesaurus:adjunct
• (化学): oxidation

派生語