duodecimal

See also: duodécimal

English

Etymology

Etymology tree

Proto-Indo-European *dwóh₁

Proto-Italic *duō

Latin duo

English duo-

English decimal

English duodecimal

From duo- + decimal.

Pronunciation

• enPR: d(y)o͞o'-ō-dĕsʹ-ĭm-əl, IPA^(key): /ˌd(j)uː.əʊˈdɛs.ɪm.əl/

• Audio (Southern England):

  (file)

• Hyphenation: du‧o‧de‧cim‧al
• Rhymes: -ɛsɪməl

Adjective

duodecimal (not comparable)

1. (arithmetic) Of a number, expressed in base twelve.

   6B4 is the duodecimal notation for the decimal number 1000.

Synonyms

• base twelve
• dozenal

Derived terms

• duodecimally

Related terms

• duodecic

Translations

expressed in a base-twelve number system

• Armenian: please add this translation if you can
• Bulgarian: дванадесетичен (dvanadesetičen)
• Catalan: duodecimal
• Chinese:

  Mandarin: please add this translation if you can

• Finnish: duodesimaalinen
• French: duodécimal (fr)
• Friulian: duodecimâl
• Georgian: please add this translation if you can
• Greek: δωδεκαδικός (el) (dodekadikós)
• Hindi: द्वादशाधारी (dvādaśādhārī)
• Hungarian: duodecimális, tizenkettes (hu)
• Irish: dódheachúlach
• Italian: duodecimale
• Japanese: 十二進法の (ja) (jūnishinpō no)
• Korean: 십이진법의 (sibijinbeob-ui)
• Polish: dwunastkowy (pl)
• Portuguese: duodecimal
• Russian: двенадцатери́чный (ru) (dvenadcateríčnyj)
• Spanish: duodecimal

Noun

duodecimal (plural duodecimals)

1. (arithmetic) A number system that uses twelve as its base.

Translations

base-twelve number system

• Bulgarian: дванадесетична бройна система f (dvanadesetična brojna sistema)
• Finnish: duodesimaalijärjestelmä (fi), kaksitoistajärjestelmä
• German: Duodezimalsystem (de) n
• Hindi: द्वादशाधार m (dvādaśādhār)
• Irish: dódheachúil f
• Japanese: 十二進法 (ja) (jūnishinpō)
• Korean: 십이진법 (sibijinbeop)

Further reading

• The Dozenal Society of America

Catalan

Pronunciation

• IPA^(key): (Northern, Central) [du.u.ðə.siˈmal]
• IPA^(key): (Balearic) [du.o.ðə.siˈmal]
• IPA^(key): (Valencia, Northwestern) [du.o.ðe.siˈmal]

Adjective

duodecimal m or f (masculine and feminine plural duodecimals)

1. (arithmetic, computing) duodecimal

Further reading

• “duodecimal”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007

Galician

Pronunciation

 

• IPA^(key): /duodɛθiˈmal/ [d̪u.o.ð̞ɛ.θiˈmɑɫ]

• IPA^(key): (standard) /duodɛθiˈmal/ [d̪u.o.ð̞ɛ.θiˈmɑɫ]
• IPA^(key): (seseo) /duodɛsiˈmal/ [d̪u.o.ð̞ɛ.siˈmɑɫ]

• Rhymes: -al
• Hyphenation: du‧o‧de‧ci‧mal

Adjective

duodecimal m or f (plural duodecimais)

1. (arithmetic, computing) duodecimal

Further reading

• “duodecimal”, in Dicionario da Real Academia Galega (in Galician), A Coruña: Royal Galician Academy, 2012–2026
• “duodecimal”, in Dicionário Estraviz de galego (in Galician), 2014–2026

Portuguese

Etymology

Etymology tree

Latin duodecimuslbor.

Portuguese duodécimo

Portuguese -al

Portuguese duodecimal

From duodécimo + -al.

Pronunciation

• (Brazil) IPA^(key): /ˌdu.o.de.siˈmaw/ [ˌdu.o.de.siˈmaʊ̯]

 

• (Portugal) IPA^(key): /ˌdu.ɔ.dɛ.siˈmal/ [ˌdu.ɔ.ðɛ.siˈmaɫ]

• (Portugal) IPA^(key): /ˌdu.ɔ.dɛ.siˈmal/ [ˌdu.ɔ.ðɛ.siˈmaɫ]
  • (Southern Portugal) IPA^(key): /ˌdu.ɔ.dɛ.siˈma.li/

• Hyphenation: du‧o‧de‧ci‧mal

Adjective

duodecimal m or f (plural duodecimais)

1. (arithmetic, computing) duodecimal (concerning numbers expressed in duodecimal or calculations using duodecimal)

Derived terms

• duodecimalmente

Noun

duodecimal m (plural duodecimais)

1. (countable) duodecimal (number expressed in the duodecimal system)

Further reading

• “duodecimal”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “duodecimal” in Dicionário Aberto based on Novo Diccionário da Língua Portuguesa de Cândido de Figueiredo, 1913
• “duodecimal”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Romanian

Etymology

Borrowed from French duodécimal.

Pronunciation

• IPA^(key): /ˌdu.o.de.t͡ʃiˈmal/

Adjective

duodecimal m or n (feminine singular duodecimală, masculine plural duodecimali, feminine/neuter plural duodecimale)

1. duodecimal

Declension

Declension of duodecimal

		singular			plural
		masculine	neuter	feminine	masculine	neuter	feminine
nominative- accusative	indefinite	duodecimal		duodecimală	duodecimali	duodecimale
	definite	duodecimalul		duodecimala	duodecimalii	duodecimalele
genitive- dative	indefinite	duodecimal		duodecimale	duodecimali	duodecimale
	definite	duodecimalului		duodecimalei	duodecimalilor	duodecimalelor

Further reading

• “duodecimal”, in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language) (in Romanian), 2004–2026

Spanish

Pronunciation

• IPA^(key): /dwodeθiˈmal/ [d̪wo.ð̞e.θiˈmal] (Equatorial Guinea, Spain)
• IPA^(key): /dwodesiˈmal/ [d̪wo.ð̞e.siˈmal] (Latin America, Philippines)
• Rhymes: -al
• Syllabification: duo‧de‧ci‧mal

Adjective

duodecimal m or f (masculine and feminine plural duodecimales)

1. duodecimal, base twelve

Further reading

• “duodecimal”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025