👶 Not identical twins 🏛️ Not a fraternity 😐 Not friendly

nonfraternal

1 7.7

Twins born from different eggs who are not identical

adjective
/nɒnˈfrætərnəl/

Specialized

: no idéntico

She explained that her nonfraternal siblings have different appearances due to their separate genetic backgrounds.

Examples

Unlike identical twins, nonfraternal twins do not share the same genetic makeup.
BOTH WOMEN ARE NONFRATERNAL SIBLINGS FROM THE SAME FATHER.

The Vampyre Wars (1996)
BERT ZUPANIC AND HIS NONFRATERNAL BIOLOGICAL SIBLING...

The Vampyre Wars (1996)
The twins were nonfraternal, each having a different father.

Synonyms

fraternal

vsnonfraternal

Specialized

7 5.9

Twins who come from two different eggs and are not identical

is the same concept but uses a different lexical label

dizygotic

vsnonfraternal

Specialized

1 9.1

Twins born from two different eggs fertilized by two different sperm and so not identical

is the same concept but appears as a different scientific term

dizygous

vsnonfraternal

Specialized

9.9

Twins who come from two separate eggs each fertilized by a different sperm

is the same meaning but uses an alternative scientific label

biovular

vsnonfraternal

Specialized

9.9

Of twins who come from two different eggs and are not identical

is the same idea but uses a different lexical form

nonidentical

vsnonfraternal

5.0

Not exactly the same in one or more ways

is specific to twins from separate fertilized eggs rather than general difference

Surface Forms

nonfraternal positive

Morphology

nonfraternal = fraternal (transparent) = non + fraternal

Biological usage of 'fraternal' (as in 'fraternal twins') is common; 'non-' straightforwardly negates this adjective.

Etymology

Nonfraternal comes from non- 'not' and frater 'brother', a root shared with fraternal and fraternity. So nonfraternal twins are not born from the same egg and are not identical like true 'brother' twins.