Origin of twin
1
before 900; Middle English; Old English
twinn (adj.),
getwinn (noun and adj.); akin to Old Frisian
twīne, Old Norse
tvinnr double, Gothic
twaihnai
Words nearby twin
Definition for twin (2 of 2)
Example sentences from the Web for twin
British Dictionary definitions for twin
twin
/ (twɪn) /
noun
verb twins, twinning or twinned
Derived forms of twin
twinning, nounWord Origin for twin
Old English
twinn; related to Old High German
zwiniling twin, Old Norse
tvinnr double
Medical definitions for twin
twin
[ twĭn ]
n.
One of two offspring born at the same birth.
adj.
Being two or one of two offspring born at the same birth.
Consisting of two identical or similar parts; double.
Scientific definitions for twin
twin
[ twĭn ]
One of two offspring born of a single gestation. Identical twins result from the division of a fertilized egg. Fraternal twins result from the fertilization of two separate eggs at the same time.
A crystal structure consisting of two intergrown crystals that are mirror images of each other. Mineral twins can form as result of defective crystal growth in response to stress from rock deformation or during magma cooling.