Definition of macrobicyclic in English:

macrobicyclic

Pronunciation /ˌmakrəʊbʌɪˈsʌɪklɪk/ /ˌmakrəʊbʌɪˈsɪklɪk/

adjective

Chemistry
  • Containing or consisting of two linked macrocyclic rings.

Origin

1960s; earliest use found in Journal of the American Chemical Society. From macro- + bicyclic.