stop codon


noun Genetics.

a codon that stops the synthesis of a protein molecule.

Nearby words

  1. stop bath,
  2. stop bead,
  3. stop by,
  4. stop chorus,
  5. stop clause,
  6. stop cold,
  7. stop down,
  8. stop in,
  9. stop knob,
  10. stop motion

Also called chain termination codon.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


Science definitions for stop codon

stop codon

[ stŏp ]

Any of three codons in a molecule of messenger RNA that do not code for an amino acid and thereby signal the termination of the synthesis of a protein. The three stop codons are UAA, UAG, and UGA, where U is uracil, A is adenine, and G is guanine. Also called termination codon
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.