See Also: closed chain compound(medicine)
open chain compound(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
chain, orthodontic chain(medicine)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
closed(dictionary)
Closed out(money)
closed(dictionary)
Closed out(finance)

Opisthorchis (medicine) and closed chain compound (medicine)


Opisthorchis (medicine)


opisthorchis


A genus of trematode liver flukes of the family opisthorchidae. It consists of the following species: o. Felineus, o. Noverca (amphimerus noverca), and o. Viverrini. The intermediate hosts are snails, fish, and amphibia.


closed chain compound (medicine)


closed chain compound -->
cyclic compound


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.