Medical Definition of Cyclic compound

1. Any compound in which the constituent atoms, or any part of them, form a ring. Used mainly in organic chemistry where: 1) numerous compound's contain rings of carbon atoms (carbocyclic compound's) or carbon atoms plus one or more atoms of other types (heterocyclic compound's), usually nitrogen, oxygen, or sulfur; 2) where the atoms in the ring are all of the same element (homocyclic or isocyclic compound); 3) where the ring is saturated or contains nonconjugated double bonds (alicyclic compound), the compound is similar in properties to the corresponding acyclic compound (e.g., cyclohexane resembles hexane); 4) where the ring contains conjugated double bonds in a closed loop in which there are 4n + 2 (where n is an integer) delocalised π electrons (Huckel's rule) (aromatic compound; e.g., benzene, pyridine), it is more stable than the corresponding saturated ring and exhibits unusual chemical properties characteristic of itself and not of other types of rings or of acyclic compound's. These aromatic compounds have the ability to sustain an induced ring current. Synonym: closed chain compound, ring compound. (05 Mar 2000)

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Lexicographical Neighbors of Cyclic Compound

cyclic AMP
cyclic AMP-dependent protein kinase
cyclic AMP-dependent protein kinases
cyclic AMP receptor protein
cyclic GMP
cyclic GMP-dependent protein kinases
cyclic GMP sensitive 3'-exoribonuclease
cyclic adenylic acid
cyclic albuminuria
cyclic cmp
cyclic compound (current term)
cyclic disorder
cyclic esotropia
cyclic guanosine monophosphate
cyclic haematopoiesis
cyclic imp
cyclic inositol phosphate
cyclic neutropenia
cyclic nucleotide
cyclic nucleotide-regulated protein kinases
cyclic nucleotides
cyclic peptide
cyclic phosphate
cyclic phosphoric acid
cyclic phosphorylation

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