Polycyclic may refer to:
*
Polycyclic compound
In the field of organic chemistry, a polycyclic compound is an organic compound featuring several closed rings of atoms, primarily carbon. These ring substructures include cycloalkanes, aromatics, and other ring types. They come in sizes of t ...
, a cyclic compound with more than one hydrocarbon loop or ring structures, including:
**
Polycyclic musks
**
Polycyclic aromatic hydrocarbon
A polycyclic aromatic hydrocarbon (PAH) is a class of organic compounds that is composed of multiple aromatic rings. The simplest representative is naphthalene, having two aromatic rings and the three-ring compounds anthracene and phenanthrene. ...
***
Chlorinated polycyclic aromatic hydrocarbon
***
Contorted polycyclic aromatic hydrocarbon
*
Polycyclic group
In mathematics, a polycyclic group is a solvable group that satisfies the maximal condition on subgroups (that is, every subgroup is finitely generated). Polycyclic groups are finitely presented, which makes them interesting from a computational ...
, in mathematics, a solvable group that satisfies the maximal condition on subgroups
*
Polycyclic spawning, when an animal reproduces multiple times during its lifespan
{{disambig