- Prefix denoting many; multiplicity.
- In chemistry, prefix meaning “polymer of,” as in polypeptide, polysaccharide, polynucleotide; often used with symbols, as in poly(A) for poly(adenylic acid), poly(Lys) for poly(l-lysine).
[G. polys, much, many]
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Examples: glitazone, GI cocktail, etc.