|1.||of or suitable to a brother; brotherly|
|2.||of or relating to a fraternity|
|3.||Compare identical designating either or both of a pair of twins of the same or opposite sex that developed from two separate fertilized ova|
|[C15: from Latin frāternus, from frāter brother]|
fraternal fra·ter·nal (frə-tûr'nəl)
Of or relating to brothers.
Of, relating to, or being a twin developed from two separately fertilized ova; dizygotic.