Origin and Etymology of poly(a)
poly- + adenylic acid
First Known Use: 1957See Words from the same year
Medical Definition of poly(A)
: RNA or a segment of RNA that is composed of a polynucleotide chain consisting entirely of adenine-containing nucleotides and that codes for polylysine when functioning as messenger RNA in protein synthesis—called also polyadenylate, polyadenylic acid
Seen and Heard
What made you want to look up poly(A)? Please tell us where you read or heard it (including the quote, if possible).