1) Cyclic 1) Heterocycle 
heterocycle; heterocyclic ring. An organic group or molecule containing rings with at least one noncarbon atom on the ring.
(het″әr-o-sik´lik) (-si´klik) having or pertaining to a closed chain or ring formation that includes atoms of different elements.
Fungi that requires two different hosts to complete their life cycle; i.e., some rust fungi.
[adj] - containing a closed ring of atoms of which at least one is not a carbon atom
adjective containing a closed ring of atoms of which at least one is not a carbon atom