cyclic

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of, relating to, or characterized by cycles.
• adjective Recurring or moving in cycles.
• adjective Chemistry Of or relating to compounds having atoms arranged in a ring or closed-chain structure.
• adjective Having parts arranged in a whorl.
• adjective Forming a whorl.

from The Century Dictionary.

• Pertaining to or moving in a cycle or circle; specifically, governed by a regular law of variation, according to which the final and initial terms of the series of changes or states are identical.
• Connected with a literary cycle: specifically applied to certain ancient Greek poets (sometimes inclusive of Homer) who wrote on the Trojan war and the adventures of the heroes connected with it. See cycle, 5.
• In ancient metrics, delivered more rapidly than usual, so as to occupy only three times or moræ instead of four: used to note certain dactyls and anapests. Thus, a cyclic dactyl is equivalent in time to a trochee, and a cyclic anapest to an iambus.
• noun A cyclic poem.
• In chem., containing a cycle or ring.
• In botany, arranged in whorls: said of the stamens, petals, etc., in a flower; also, having the parts so arranged: said of the flower; cyclical.
• In geometry, having its vertices all on the same circle: thus, if a quadrilateral has its vortices concyclic it is cyclic.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to a cycle or circle; moving in cycles.
• adjective (Chemistry) Having atoms bonded to form a ring structure. Opposite of acyclic.
• adjective Recurring in cycles{2}; having a pattern that repeats at approximately equal intervals; periodic. Opposite of noncyclic.
• adjective Marked by repeated cycles{2}.
• adjective the chorus which performed the songs and dances of the dithyrambic odes at Athens, dancing round the altar of Bacchus in a circle.
• adjective 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Characterized by, or moving in cycles, or happening at regular intervals
• adjective chemistry Of a compound having chains of atoms arranged in a ring
• adjective botany Having parts arranged in a whorl
• adjective mathematics, of a group being generated by only one element
• adjective geometry able to be inscribed in a circle

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective forming a whorl or having parts arranged in a whorl
• adjective of a compound having atoms arranged in a ring structure
• adjective recurring in cycles
• adjective conforming to the Carnot cycle
• adjective marked by repeated cycles