transgender or transsexual: Their son is trans. Laura is a trans woman.


a person who is transgender or transsexual.

Origin of trans

by shortening

usage note for trans

Many transgender people prefer writing trans compounds as two words, as in trans man, trans woman, and trans person . When so written as an open compound with a space, trans functions as an adjective modifying a noun such as man. Spelling these words as closed or hyphenated compounds, as in transmale and trans-people, loses the distinction between trans as a descriptive adjective and man , woman , or person as a human being. Similarly, cis male and cis female are the preferred spelling of these terms.

Definition for trans (2 of 4)

Definition for trans (3 of 4)


a prefix occurring in loanwords from Latin (transcend; transfix); on this model, used with the meanings “across,” “beyond,” “through,” “changing thoroughly,” “transverse,” in combination with elements of any origin: transisthmian; trans-Siberian; transempirical; transvalue.
Chemistry. a prefix denoting a geometric isomer having a pair of identical atoms or groups on the opposite sides of two atoms linked by a double bond.Compare cis-(def 2).
Astronomy. a prefix denoting something farther from the sun (than a given planet): trans-Martian; trans-Neptunian.
a prefix meaning “on the other side of,” referring to the misalignment of one’s gender identity with one's biological sex assigned at birth: transgender; transsexual.

Origin of trans-

< Latin, combining form of trāns (adv. and preposition) across, beyond, through

Definition for trans (4 of 4)

in trans.

in transit; en route.

Origin of in trans.

From the Latin word in trānsitū Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trans

British Dictionary definitions for trans (1 of 2)


abbreviation for


British Dictionary definitions for trans (2 of 2)


sometimes before s- tran-


across, beyond, crossing, on the other sidetransoceanic; trans-Siberian; transatlantic
changing thoroughlytransliterate
(often in italics) indicating that a chemical compound has a molecular structure in which two groups or atoms are on opposite sides of a double bondtrans-butadiene Compare cis- (def. 2)

Word Origin for trans-

from Latin trāns across, through, beyond
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

Medicine definitions for trans (1 of 2)

[ trăns, trănz ]


Having two genes, each carrying a mutation, located on opposite chromosomes of a homologous pair.

Medicine definitions for trans (2 of 2)



Across; on the other side; beyond:transilient.
Change; transfer:transketolation.
Having a pair of identical atoms on opposite sides of two atoms linked by a double bond. Used of a geometric isomer. Usually in italic:trans-butene.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.