Definition of inosine
: a nucleoside C10H12N4O5 that is composed of hypoxanthine and ribose, that in the form of its monophosphate is a biosynthetic precursor of both AMP and its guanosine analog, and that binds to adenine, cytosine, or uracil especially in some transfer RNAs — compare poly i:c
Origin and Etymology of inosine
International Scientific Vocabulary inosinic acid (the acid C10H13N4O8P; inosinic, from Greek in-, is sinew + International Scientific Vocabulary 2-ose + 1-in + 1-ic) + 2-ine
First Known Use: 1911
Medical Definition of inosine
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