New American Oxford Dictionary
macrocyclic
mac ro cy clic |ˌmakrōˈsiklik, -ˈsīklik ˌmækroʊˈsaɪklɪk | ▶adjective Chemistry of, relating to, or denoting a ring composed of a relatively large number of atoms, such as occurs in heme, chlorophyll, and several natural antibiotics. DERIVATIVES mac ro cy cle |ˈmakrōˌsīkəl |noun
Oxford Dictionary
macrocyclic
macrocyclic |ˌmakrə (ʊ )ˈsʌɪklɪk, -ˈsɪk -| ▶adjective Chemistry relating to or denoting a ring composed of a relatively large number of atoms, such as occur in haem, chlorophyll, and several natural antibiotics. DERIVATIVES macrocycle noun