dizygotic twins

(redirected from diovular twins)
Also found in: Dictionary, Encyclopedia.

di·zy·got·ic twins

twins derived from two zygotes.
Synonym(s): dichorial twins, diovular twins, fraternal twins, heterologous twins

dizygotic twins

Fraternal twins Twins resulting from 2 separate fertilized eggs, liberated simultaneously from the ovaries, which develop in separate or partially fused chorion and placenta, and usually a separate amniotic sac. Cf Monozygotic twins.

di·zy·got·ic twins

(dī-zī-got'ik twinz)
Twins derived from two zygotes.
Synonym(s): fraternal twins, heterologous twins.

dizygotic twins

or

fraternal twins

a pair of children born at the same time to the same mother but each developing from a different fertilized egg. Such twins are therefore nonidentical, being equivalent to normal SIBLINGS, and can be of the same or different sexes. Compare MONOZYGOTIC TWINS.