https://doi.org/10.1351/goldbook.L03441
A
double-strand macromolecule
consisting of an uninterrupted sequence
of rings, with adjacent rings having two or more atoms in common. Alternatively, a ladder macromolecule is a double-strand macromolecule
with constitutional unit
joined to each other through four atoms, two on one side and two on the other side of each constitutional unit
.