Dictionary

poly(A)

noun \ˌpä-lē-ˈā\

Definition of POLY(A)

:  RNA or a segment of RNA that is composed of a polynucleotide chain consisting entirely of adenylic acid residues and that codes for polylysine when functioning as messenger RNA in protein synthesis
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Origin of POLY(A)

poly- + adenylic acid
First Known Use: 1957
Medical Dictionary

poly(A)

noun \ˈpäl-ē-ˈā\

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

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