initiation codon
noun
ini·ti·a·tion codon
| \ in-ˌish-ē-ˈā-shən-
\
\
variants:
also initiator codon
Medical Definition of initiation codon
: start codon
Efficient initiation of translation depends upon the existence of a group of six to eight purine-rich nucleotides just upstream from the AUG initiation codon.— James D. Watson et al., Recombinant DNA: A Short Course, 1983