fraternal twin
noun
one of a pair of twins, not necessarily resembling each other, or of the same sex, that develop from two separately fertilized ova.
fraternal twins
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pluralof fraternal twin.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Roughly half of the participants were identical twins, who share all of their genes, while the others were fraternal twins, who share about half.
From Science Daily ● May 6, 2026
The research followed about 880 people, including both identical and fraternal twins.
From Science Daily ● May 6, 2026
At 26, Carpenter is precisely half of Miss Piggy’s age, and yet they could be fraternal twins.
From Salon ● Feb. 28, 2026
The sisters said being identical was "a bit cooler" than fraternal twins but the discovery complicated Caitlin's treatment as Grace was unable to donate stem cells.
From BBC ● Feb. 24, 2026
We’re fraternal twins, of course, but we look very much alike, with dark eyes and hair that we got from our mother.
From "Confessions of a Murder Suspect" by James Patterson
