[{"Bold_text": "adjective", "List Items": ["Chemistry.of or relating to an atom other than carbon, particularly in a cyclic compound.", "Informal. heterosexual ."]}, {"Bold_text": "noun", "List Items": ["Informal.a heterosexual ."]}, {"Bold_text": null, "List Items": ["a combining form meaning “different,” “other,” used in the formation of compound words:heterocyclic."]}]