Definition of intron
: a polynucleotide sequence in a nucleic acid that does not code information for protein synthesis and is removed before translation of messenger RNA — compare exon
Recent Examples of intron from the Web
Named for parts of genes called introns and exons, Intrexon was founded in 1998 by Thomas D. Reed and his wife, Jackie, to supply DNA constructs for research with genetically engineered mice.
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Origin and Etymology of intron
intervening sequence + 2-on
First Known Use: 1978See Words from the same year
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