of or befitting a brother or brothers; brotherly.
of or being a society of men associated in brotherly union, as for mutual aid or benefit: a fraternal order; a fraternal association.
Origin of fraternal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of or suitable to a brother; brotherly
of or relating to a fraternity
designating either or both of a pair of twins of the same or opposite sex that developed from two separate fertilized ovaCompare identical (def. 3)
Word Origin for fraternal
C15: from Latin frāternus, from frāter brother
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
early 15c., from Middle French fraternel and directly from Medieval Latin fraternalis, from Latin fraternus "brotherly" (see fraternity). The noun meaning "fraternal twin" is recorded by 1911.
Online Etymology Dictionary, © 2010 Douglas Harper
Of or relating to brothers.
Of, relating to, or being a twin developed from two separately fertilized ova; dizygotic.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.