stop codon
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stop codon
n.
Any of three codons, UAA, UAG, or UGA, that signal the termination of the synthesis of a protein. Also called chain termination codon, termination codon.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.