pol·y·cyc·lic 
(pŏl′ĭ-sĭklĭk, -sīklĭk)
(pŏl′ĭ-sĭklĭk, -sīklĭk)adj.
Having two or more atomic rings in a molecule.
- immunocompromised
- immunodeficiency
- immunodeficient
- immunodepressant
- immunodepression
- immunodepressive
- immunodiagnosis
- immunodiagnostic
- immunoelectrophoresis
- immunofluorescence
- immunofluorescent
- immunogenetic
- immunogeneticist
- immunogenetics
- immunogenic
- immunogenicity
- immunoglobulin
- immunoglobulin A
- immunoglobulin D
- immunoglobulin E
- immunoglobulin G
- immunoglobulin M
- immunologic
- immunological
- immunologically