noun · 15 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
9
noun
Meaning 9
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).
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, sciences
Examples
closed reduction
open reduction and internal fixation
Meaning relationships
Synonyms: taxis
Antonyms: none provided
10
noun
Meaning 10
A reduced price of something by a fraction or decimal.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: paying
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
11
noun
Meaning 11
The ratio of a material's change in thickness compared to its thickness prior to forging and/or rolling.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
12
noun
Meaning 12
A religious settlement created during a mission by Spanish or Portuguese colonists with the intent of evangelizing Christianity to the local population.
Definition source: English Wiktionary via Wiktextract
any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: reducing
Antonyms: none provided
Broader terms: chemical reaction, reaction
History
Etymology
From Middle English reduccion, a borrowing from Old French reducion, from Latin reductiō, reductiōnem. Equivalent to reduce + -tion.
Across languages
Translations
104 source translations are retained for this English entry.
Afrikaans:
reduksie
— act, process, or result of reducing
Arabic:
نَقْص
(naqṣ)
— act, process, or result of reducing
Arabic:
نقص
(naʔṣ)
— act, process, or result of reducing
Bulgarian:
намаляване
(namaljavane)
— act, process, or result of reducing
Bulgarian:
съкращаване
(sǎkraštavane)
— act, process, or result of reducing
Catalan:
reducció
— act, process, or result of reducing
Czech:
snížení
— act, process, or result of reducing
Czech:
redukce
— act, process, or result of reducing
Finnish:
vähentäminen
— act, process, or result of reducing
French:
réduction
— act, process, or result of reducing
Galician:
redución
— act, process, or result of reducing
Georgian:
შემცირება
(šemcireba)
— act, process, or result of reducing
Georgian:
დაკლება
(daḳleba)
— act, process, or result of reducing
Georgian:
კლება
(ḳleba)
— act, process, or result of reducing
German:
Reduktion
— act, process, or result of reducing
German:
Reduzierung
— act, process, or result of reducing
Greek:
μείωση
(meíosi)
— act, process, or result of reducing
Greek:
ελάττωση
(eláttosi)
— act, process, or result of reducing
Ancient Greek:
μείωσις
(meíōsis)
— act, process, or result of reducing
Hebrew:
צִמְצוּם
(tzimtzúm)
— act, process, or result of reducing
Hindi:
कटौती
(kaṭautī)
— act, process, or result of reducing
Irish:
laghdú
— act, process, or result of reducing
Italian:
sgravio
— act, process, or result of reducing
Italian:
taglio
— act, process, or result of reducing
Italian:
riduzione
— act, process, or result of reducing
Latvian:
pamazinājums
— act, process, or result of reducing
Macedonian:
намалу́вање
(namalúvanje)
— act, process, or result of reducing
Macedonian:
снижу́вање
(snižúvanje)
— act, process, or result of reducing
Occitan:
reduccion
— act, process, or result of reducing
Portuguese:
redução
— act, process, or result of reducing
Portuguese:
diminuição
— act, process, or result of reducing
Romanian:
reducere
— act, process, or result of reducing
Russian:
уменьше́ние
(umenʹšénije)
— act, process, or result of reducing
Russian:
сниже́ние
(snižénije)
— act, process, or result of reducing
Russian:
сведе́ние
(svedénije)
— act, process, or result of reducing
Spanish:
reducción
— act, process, or result of reducing
Swedish:
minskning
— act, process, or result of reducing
Swedish:
neddragning
— act, process, or result of reducing
Swedish:
sänkning
— act, process, or result of reducing
Telugu:
తగ్గింపు
(taggimpu)
— act, process, or result of reducing
Ottoman Turkish:
اكرام
(ikram)
— act, process, or result of reducing
Bulgarian:
намаление
(namalenie)
— amount or rate by which something is reduced
Finnish:
vähennys
— amount or rate by which something is reduced
Finnish:
alennus
— amount or rate by which something is reduced
Finnish:
alentuminen
— amount or rate by which something is reduced
French:
réduction
— amount or rate by which something is reduced
Greek:
μείωση
(meíosi)
— amount or rate by which something is reduced
Hindi:
कटौती
(kaṭautī)
— amount or rate by which something is reduced
Italian:
diminuzione
— amount or rate by which something is reduced
Italian:
sgravio
— amount or rate by which something is reduced
Italian:
riduzione
— amount or rate by which something is reduced
Macedonian:
намалу́вање
(namalúvanje)
— amount or rate by which something is reduced
Macedonian:
смалу́вање
(smalúvanje)
— amount or rate by which something is reduced
Norwegian:
reduksjon
— amount or rate by which something is reduced
Swedish:
minskning
— amount or rate by which something is reduced
Bulgarian:
редукция
(redukcija)
— chemistry: reaction in which electrons are gained and valence is reduced
Chinese Mandarin:
還原 /还原
(huányuán)
— chemistry: reaction in which electrons are gained and valence is reduced
Chinese Mandarin:
還原作用 /还原作用
(huányuán zuòyòng)
— chemistry: reaction in which electrons are gained and valence is reduced
Czech:
redukce
— chemistry: reaction in which electrons are gained and valence is reduced
Finnish:
pelkistys
— chemistry: reaction in which electrons are gained and valence is reduced
Finnish:
pelkistyminen
— chemistry: reaction in which electrons are gained and valence is reduced
French:
réduction
— chemistry: reaction in which electrons are gained and valence is reduced
Georgian:
აღდგენა
(aɣdgena)
— chemistry: reaction in which electrons are gained and valence is reduced
Georgian:
რედუქცია
(redukcia)
— chemistry: reaction in which electrons are gained and valence is reduced
German:
Reduktion
— chemistry: reaction in which electrons are gained and valence is reduced
Greek:
αναγωγή
(anagogí)
— chemistry: reaction in which electrons are gained and valence is reduced
Indonesian:
reduksi
— chemistry: reaction in which electrons are gained and valence is reduced
Italian:
riduzione
— chemistry: reaction in which electrons are gained and valence is reduced
Japanese:
還元
(kangen)
— chemistry: reaction in which electrons are gained and valence is reduced
Korean:
환원
(hwanwon)
— chemistry: reaction in which electrons are gained and valence is reduced
Macedonian:
реду́кција
(redúkcija)
— chemistry: reaction in which electrons are gained and valence is reduced
Malay:
penurunan
— chemistry: reaction in which electrons are gained and valence is reduced
Māori:
ōheketanga
— chemistry: reaction in which electrons are gained and valence is reduced
Mongolian:
ангижралт
(angižralt)
— chemistry: reaction in which electrons are gained and valence is reduced
Mongolian:
ангижрах үйлчлэл
(angižrax üjlčlel)
— chemistry: reaction in which electrons are gained and valence is reduced
Mongolian:
ᠠᠩᠭᠢᠵᠢᠷᠠᠯᠲᠤ
(angɣiǰiraltu)
— chemistry: reaction in which electrons are gained and valence is reduced
Mongolian:
ᠠᠩᠭᠢᠵᠢᠷᠠᠬᠤ ᠦᠢᠯᠴᠢᠯᠡᠯ
(angɣiǰiraqu üilčilel)
— chemistry: reaction in which electrons are gained and valence is reduced
Portuguese:
redução
— chemistry: reaction in which electrons are gained and valence is reduced
Swedish:
reduktion
— chemistry: reaction in which electrons are gained and valence is reduced
Tagalog:
hitambal
— chemistry: reaction in which electrons are gained and valence is reduced
Turkish:
redüklenme
— chemistry: reaction in which electrons are gained and valence is reduced
Finnish:
kokoon keittäminen
— cooking: process of concentrating a sauce
French:
réduction
— cooking: process of concentrating a sauce
Swedish:
reducering
— cooking: process of concentrating a sauce
Finnish:
sieventäminen
— math: rewriting an expression
Finnish:
palautus
— math: rewriting an expression
French:
réduction
— math: rewriting an expression
Greek:
αναγωγή
(anagogí)
— math: rewriting an expression
Indonesian:
penyederhanaan
— math: rewriting an expression
Japanese:
簡約
(kan'yaku)
— math: rewriting an expression
Malay:
penurunan
— math: rewriting an expression
Tagalog:
maliw
— math: rewriting an expression
Tagalog:
pagmaliw
— math: rewriting an expression
French:
réduction
— computability theory: a transformation of one problem into another problem
German:
Reduktion
— computability theory: a transformation of one problem into another problem
Hebrew:
רדוקציה
(redúktzya)
— computability theory: a transformation of one problem into another problem
Japanese:
還元
(kangen)
— computability theory: a transformation of one problem into another problem
Bulgarian:
наместване
(namestvane)
— medical procedure to restore a fracture
French:
réduction
— medical procedure to restore a fracture
Irish:
deisiú cnámh
— medical procedure to restore a fracture
Italian:
riduzione
— medical procedure to restore a fracture
Macedonian:
наместу́вање
(namestúvanje)
— medical procedure to restore a fracture
Portuguese:
redução
— medical procedure to restore a fracture
Spanish:
reducción
— medical procedure to restore a fracture
