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anchorite

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 THAT MAY BE CONFUSED WITH twin

twain twin twine

Definition for twin (2 of 2)

twin2
[ twin ]
/ twɪn /

verb (used with or without object), twinned, twin·ning. Scot.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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, noun

Word Origin for twin

Old English twinn; related to Old High German zwiniling twin, Old Norse tvinnr double
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

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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.