identical twin

noun

one of a pair of twins who develop from a single fertilized ovum and therefore have the same genotype, are of the same sex, and usually resemble each other closely.
Compare fraternal twin.

Origin of identical twin

First recorded in 1885–90

Words nearby identical twin

identi-kit, identic, identical, identical proposition, identical rhyme, identical twin, identical twins, identification, identification bracelet, identification card, identification parade

Words related to identical twins

likeness, reciprocal, double, clone, look-alike, corollary, companion, counterpart, duplicate, mate, ringer, coordinate, doppelganger, match

Medical definitions for identical twins

identical twins

pl.n.

Twins derived from the same fertilized ovum that at an early stage of development becomes separated into independently growing cell aggregations, giving rise to two individuals of the same sex, identical genetic makeup, and closely similar appearance.