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. [
1913 Webster]
" 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."
[1913 Webster]