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poly·uri·dyl·ic acid | \ ˌpäl-ē-ˌyu̇r-ə-ˌdil-ik- 
\
\Medical Definition of polyuridylic acid
: RNA or a segment of RNA that is composed of a polynucleotide chain consisting entirely of uracil-containing nucleotides and that codes for a polypeptide chain consisting of phenylalanine residues when functioning as messenger RNA in protein synthesis
— called also poly(U)
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