name
Meaning 1
A surname
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Standard Lemma guide
exon
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
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General-American: /ˈɛksɑn/
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Southern-England: Recorded audio is listed in the source snapshot.
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CMU ARPABET: EH2 K S AO1 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
noun
Meaning 2
An officer of the King's Body Guard of the Yeomen of the Guard.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
noun
Meaning 3
A region of a transcribed gene present in the final functional RNA molecule.
Definition source: English Wiktionary via Wiktextract
Topics: biology, genetics, medicine, natural-sciences, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
noun
Meaning 4
sequence of a gene's DNA that transcribes into protein structures
Definition source: Princeton WordNet 3.0
Examples
- exons are interspersed with introns
Meaning relationships
Synonyms: coding DNA
Antonyms: intron
Broader terms: deoxyribonucleic acid, desoxyribonucleic acid, DNA
History
Etymology
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.
Apparently an attempt to express the pronunciation of French exempt.
Combination of the prefix ex of the term expressed (region) and the term intron.
Across languages
Translations
10 source translations are retained for this English entry.
- Chinese Mandarin: 外顯子 /外显子 (wàixiǎnzǐ) — region of a gene
- French: exon — region of a gene
- Hungarian: exon — region of a gene
- Icelandic: táknröð — region of a gene
- Italian: esone — region of a gene
- Korean: 엑손 (ekson) — region of a gene
- Portuguese: éxon — region of a gene
- Portuguese: exão — region of a gene
- Spanish: exón — region of a gene
- Swedish: exon — region of a gene