1. Having atoms linked by bonds represented in circular or triangular form
   "The closed-chain structure of benzene gives it stability";
   - closed-ring

1. (chemistry) a chain of atoms in a molecule that forms a closed loop
   "Benzene is a classic example of a molecule with a closed chain structure";
   - ring

Derived forms: closed chains

See also: cyclic

Type of: chain, chemical chain

Antonym: open chain

Encyclopedia: Closed-chain