cyclical
Concise Oxford English Dictionary © 2008 Oxford University Press:
cyclic /ˈsʌɪklɪk, ˈsɪk-/
▶adjective
- 1 occurring in cycles.
- 2 having the form of a circle or closed ring.
■ Chemistry having a molecular structure containing one or more closed rings of atoms.
– derivatives
cyclical adjective,
cyclically adverb.
cyclical adjective,
cyclically adverb.
'cyclical' also found in these Oxford entries:

