juvenile hormone metabolic process juvenile hormone catabolic process GO:0006719 biological_process juvenile hormone degradation juvenile hormone breakdown The chemical reactions and pathways resulting in the breakdown of juvenile hormones, the three sesquiterpenoid derivatives that function to maintain the larval state of insects at molting and that may be required for other processes, e.g. oogenesis. juvenile hormone catabolism sesquiterpenoid catabolic process hormone catabolic process