The Collaborative International Dictionary
Polymeric \Pol`y*mer"ic\, a. [Poly- + Gr. ? part.] (Chem.) Having the same percentage composition (that is, having the same elements united in the same proportion by weight), but different molecular weights; -- often used with with; thus, cyanic acid ( CNOH), fulminic acid ( C2N2O2H2), and cyanuric acid ( C3N3O3H3), are polymeric with each other.
Note: The figures expressing the number of atoms of each element in a number of polymeric substances are respectively multiples and factors of each other, or have some simple common divisor. The relation may be merely a numerical one, as in the example given above, or a chemical one, as in the case of aldehyde, paraldehyde, and metaldehyde.
Douglas Harper's Etymology Dictionary
Wiktionary
a. (context chemistry English) of, relating to, or consisting of a polymer. Examples of such compounds include polyurethane foams, PVC foams, and styrofoam.
WordNet
adj. of or relating to or consisting of a polymer; "a polymeric compound"
Usage examples of "polymeric".
Even the simplest bacterium has over a thousand ‘small’ molecules — sugars, amino acids, fatty acids — and another thousand or two thousand macromolecules — the different proteins and other polymeric chains — that are hundreds of times more complex than the subunits.