identical twin

noun

: either member of a pair of twins that are produced from a single egg and who look exactly alike

Examples of identical twin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Share [Findings] Sets of both fraternal and identical twins exhibit internally similar metacognitive abilities, suggesting that metacognition is environmental rather than heritable. Rafil Kroll-Zaidi, Harper's Magazine, 2 Jan. 2025 Finally, the couple welcomed identical twin boys, Daniel, who just got his Masters in Business Administration and David, 23, who works as a computer engineer. Gord Magill, Newsweek, 21 Dec. 2024 About 100 genes have been associated with autism, and if one identical twin has autism, the other twin has an 80% chance of also having autism, suggesting a strong genetic link. Eduardo Cuevas, USA TODAY, 14 Dec. 2024 This is why identical twins can have different fingerprints. William A. Haseltine, Forbes, 23 Nov. 2024 See all Example Sentences for identical twin 

Dictionary Entries Near identical twin

Cite this Entry

“Identical twin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/identical%20twin. Accessed 15 Jan. 2025.

Kids Definition

identical twin

noun
: either member of a pair of twins that are produced from a single fertilized egg, usually have identical genes, and are physically similar

More from Merriam-Webster on identical twin

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!