The Collaborative International Dictionary of English v.0.48:
Cyclic \Cyc"lic\ (s?k"l?k or s?"kl?k), Cyclical \Cyc"lic*al\
(s?k"l?-kal), a. [Cf. F. cycluque, Gr. kykliko`s, fr. ky`klos
1. Of or pertaining to a cycle or circle; moving in cycles;
as, cyclical time. --Coleridge.
2. (Chemistry) Having atoms bonded to form a ring structure.
Opposite of acyclic.
Note: Used most commonly in respect to organic compounds.
Note: [Narrower terms: bicyclic; heterocyclic;
Syn: closed-chain, closed-ring.
3. Recurring in cycles; having a pattern that repeats at
approximately equal intervals; periodic. Opposite of
Note: [Narrower terms: alternate(prenominal),
alternating(prenominal); alternate(prenominal), every
other(prenominal), every second(prenominal);
biyearly; circadian exhibiting 24-hour
periodicity); circular; daily, diurnal;
fortnightly, biweekly; hourly; midweek,
midweekly; seasonal; semestral, semestrial;
semiannual, biannual, biyearly; semiweekly,
biweekly; weekly; annual, yearly; biennial;
bimonthly, bimestrial; half-hourly; half-yearly;
monthly; tertian, alternate(prenominal);
4. Marked by repeated cycles.
Cyclic chorus, the chorus which performed the songs and
dances of the dithyrambic odes at Athens, dancing round
the altar of Bacchus in a circle.
Cyclic poets, certain epic poets who followed Homer, and
wrote merely on the Trojan war and its heroes; -- so
called because keeping within the circle of a single
subject. Also, any series or coterie of poets writing on
one subject. --Milman.