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

First Known Use of poly(A)

1957, in the meaning defined above

History and Etymology for poly(A)

poly- + adenylic acid

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The first known use of poly(A) was in 1957

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More Definitions for poly(A)

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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