| 释义 |
{{wiktionary}} 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
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