1
: transgender
The Affordable Care Act included trans health care in many places and that was a remarkable step in the right direction for trans people, but in some ways it still remained difficult to receive personalized and comprehensive transgender healthcare.Alexa Corazón

Note: While the word trans has been used as a shortened version of both transgender and transsexual, the word transsexual is dated and sometimes offensive. The word transgender is preferred.

2
chemistry : characterized by having certain groups of atoms on opposite sides of the longitudinal axis of a double bond or of the plane of a ring in a molecule
3
genetics : relating to or being an arrangement of two very closely linked genes in the heterozygous condition in which one mutant allele and one wild-type allele are on each of the two homologous chromosomes compare cis sense 3

trans

2 of 3

abbreviation

trans-

3 of 3

prefix

1
: on or to the other side of : across : beyond
transatlantic
2
a
: beyond (a specified chemical element) in the periodic table
transuranium
b
: trans
trans-fatty acid
compare cis- sense 2
3
: through
transcutaneous
4
: so or such as to change or transfer
transliterate
translocation
transamination
transship

Examples of trans in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
America’s Record-Breaking Ocean Liner On its maiden voyage, the ship shattered the trans-Atlantic speed record. Erin Gifford, Southern Living, 19 Apr. 2026 Four days after the trans-lunar injection engine firing, Wiseman and his crewmates reached a point in space 248,655 miles from Earth, the previous record for the farthest any human has flown into deep space. William Harwood, CBS News, 16 Apr. 2026 In 1915, the first trans-continental call between New York and San Francisco and 12 years later the first trans-Atlantic call. Thomas C. Zambito, USA Today, 15 Apr. 2026 In 2024, American announced its largest-ever trans-Atlantic schedule out of Charlotte, including new service in 2025 to Greece and other nonstop overseas destinations. Chase Jordan, Charlotte Observer, 15 Apr. 2026 See All Example Sentences for trans

Word History

Etymology

Adjective

(sense 1) by shortening of transgender or transsexual; (senses 2 & 3) from the prefix trans-

Prefix

Latin trans-, tra- across, beyond, through, so as to change, from trans across, beyond — more at through entry 1

First Known Use

Adjective

1892, in the meaning defined at sense 2

Time Traveler
The first known use of trans was in 1892

Browse Nearby Words

Cite this Entry

“Trans.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trans. Accessed 23 Apr. 2026.

Kids Definition

trans-

prefix
1
: on or to the other side of : across : beyond
transatlantic
2
: so or such as to change in form or position or transfer
transliterate
Etymology

Prefix

derived from Latin trans- "across, beyond, so as to change"

Medical Definition

trans

adjective
1
: characterized by or having certain groups of atoms on opposite sides of the longitudinal axis of a double bond or of the plane of a ring in a molecule see all-trans
2
: relating to or being an arrangement of two very closely linked genes in the heterozygous condition in which one mutant allele and one wild-type allele are on each of the two homologous chromosomes compare cis sense 2
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