polyinosinic acid
noun
poly·ino·sin·ic acid
| \ ˌpäl-ē-ˌin-ə-ˌsin-ik-
, -ˌī-nə-
\
, -ˌī-nə-
\
Medical Definition of polyinosinic acid
: RNA or a segment of RNA that is composed of a polynucleotide chain consisting entirely of inosinic acid residues — see poly i entry c