intron

(in′trän′)

noun

an intervening sequence in the eukaryote genetic code, interrupting protein formation

Origin: coined (1978) by W. Gilbert (1932-), U.S. molecular biologist < intra- (because within the gene) + -on, as in operon

See intron in American Heritage Dictionary 4

noun

A segment of a gene situated between exons that is removed before translation of messenger RNA and does not function in coding for protein synthesis.

Origin:

Origin: intr(agenic), occurring within a gene (intra- + genic)

Origin: + -on¹

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