https://doi.org/10.1351/goldbook.M03662
A cyclic macromolecular or a macromolecular cyclic portion of a macromolecule.
Note: In the literature, the term 'macrocycle' is sometimes used for molecules of low molecular mass that would not be considered 'macromolecules' as specified in the definition given in this book.
Source:
PAC, 1996, 68, 2287. (Glossary of basic terms in polymer science (IUPAC Recommendations 1996)) on page 2298 [Terms] [Paper]