Exon

//ˈɛksɑn// name, noun

name, noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    An officer of the King's Body Guard of the Yeomen of the Guard.
  2. 2
    A region of a transcribed gene present in the final functional RNA molecule.
  3. 3
    sequence of a gene's DNA that transcribes into protein structures wordnet
Proper Noun
  1. 1
    A surname

Synonyms

All synonyms
coding dnaintron

Antonyms

All antonyms
intron

Etymology

Etymology 1

Apparently an attempt to express the pronunciation of French exempt.

Etymology 2

Combination of the prefix ex of the term expressed (region) and the term intron.

Etymology 3

Clipping of Medieval Latin Exonia (or perhaps its adjective form Exoniensis), the Latin name for Exeter which appears in the Liber Exoniensis (1086), + -an. See also Exonian.

Related phrases

Exon Domesdayexon captureexon shufflingexon trapping

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.