1 definition by big jon155

Top Definition
fraternal twins: a boy and girl that are twins, or a girl and a girl or a boy and a boy that aren't identical twins
They are dizygotic twins.
by big jon155 March 25, 2006

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.