Polycyclic

Polycyclic may refer to:


 * Polycyclic compound, a cyclic compound with more than one hydrocarbon loop or ring structures, including:
 * Polycyclic musks
 * Polycyclic aromatic hydrocarbon
 * Chlorinated polycyclic aromatic hydrocarbon
 * Contorted polycyclic aromatic hydrocarbon


 * Polycyclic group, in mathematics, a solvable group that satisfies the maximal condition on subgroups


 * Polycyclic spawning, when an animal reproduces multiple times during its lifespan