three or more atoms linked together to form a ring or cycle and represented accordingly by its structural formula.
(chem) another name for ring1 (sense 18)
An arrangement of atoms of the same type that forms a ring. Benzene and naphthalene are closed-chain compounds.
- Closed chain compound
closed chain compound n. See cyclic compound.
- Closed chest massage
closed chest massage n. Cardiac massage in which pressure is applied over the sternum.
noun, Electricity. 1. a circuit without interruption, providing a continuous path through which a current can flow. noun 1. a complete electrical circuit through which current can flow when a voltage is applied Compare open circuit closed circuit
- Closed circuit method
closed circuit method n. A method for measuring oxygen consumption in which an initial quantity of oxygen is rebreathed through a carbon dioxide absorber and any decrease in the volume of oxygen taken in is noted.