the.com/fraternal
Brotherly in spirit, not in mirror — twins who share a womb but not a face.
means Relating to brothers or brotherhood, or describing twins from two separate eggs who look no more alike than ordinary siblings.
from From Latin frater, brother — same root that gave fraternity its keg-stained reputation and fraternize its whiff of suspicion.
Twin truthFraternal twins share only about half their DNA.
Order of businessFraternal orders like the Elks predate modern insurance.
Gender-neutral nowFraternal twins can be any mix of sexes.