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code of conduct
code of practice
code red
code-sharing
code word
codebook
codec
codefendant
codeine
codependency
codetermination
codex
Codex Juris Canonici
codfish
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codon
co·don [ kṓ dòn ] (plural co·dons)


noun 
Definition:
 
basic unit of genetic code: a unit in messenger RNA consisting of a set of three consecutive nucleotides that specifies a particular amino acid in protein synthesis
[Mid-20th century. <code + -on1]
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