Rotary
Part of speech: noun
Definition: A traffic circle. An international club for community service.
Part of speech: adjective
Definition: Having rotation.
Example sentence: I went from rotary phone to Twitter. And was appalled at the notion.
Cyclic
Part of speech: adjective
Definition: Characterized by, or moving in cycles, or happening at regular intervalsOf a compound having chains of atoms arranged in a ringHaving parts arranged in a whorl(of a group) being generated by only one element