Meanings
plural identical twins
- One of exactly two siblings produced from the splitting of a single zygote.
Synonyms: monozygotic twin
Synonyms & antonyms
nounOne of exactly two siblings produced from the splitting of a single zygote.
More synonyms by meaning
nouneither of two twins developed from the same fertilized ovum (having the same genetic material)
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
identical (“indistinguishable”) + twin (“sibling with whom one has shared the uterus of the mother”)
Full word history & related roots →Translations
Danish enægget tvilling
- enægget tvillingsibling
Esperanto unuovola ĝemelo
- unuovola ĝemelosibling
Finnish identtinen kaksonen
- identtinen kaksonensibling
French vrai jumeau
- vrai jumeausibling
German eineiiger Zwilling
- eineiiger Zwillingsibling
Indonesian kembar identik
- kembar identiksibling
Japanese 一卵性双生児
- 一卵性双生児 (ichiranseisōseiji)sibling
Korean 일란성 쌍둥이
- 일란성 쌍둥이 (illanseong ssangdung'i)sibling
Malay kembar seiras
- kembar seirassibling
Polish bliźnię jednojajowe
- bliźnię jednojajowesibling
Swedish enäggstvilling
- enäggstvillingsibling
Ukrainian однояйце́вий близню́к, однояйце́ва близню́чка
- однояйце́вий близню́к (odnojajcévyj blyznjúk)sibling
- однояйце́ва близню́чка (odnojajcéva blyznjúčka)sibling
- однояйце́ві близня́та (odnojajcévi blyznjáta)sibling
Welsh gefell unwy, gefeilles unwy
- gefell unwysibling
- gefeilles unwysibling
Cite this entry
identical twin. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/identical%20twin
“identical twin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/identical%20twin. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “identical twin,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/identical%20twin.
Source: identical twin on Wiktionary, CC BY-SA 4.0.