plural of top-chain

(nautical) A chain for slinging the lower yards, in time of action, to prevent their falling, if the ropes by which they are hung are shot away.

(commerce) A supply chain which is temperature-controlled, important for the supply of certain foods or pharmaceuticals.

plural of brequet chain

(dated, rare) A watch-guard; a chain for a pocket watch.

plural of mountain chain

(organic chemistry) Having carbon atoms arranged in a linear rather than cyclical chain.

(organic chemistry) Having only a single chain of carbon atoms.

plural of pawn chain

(chess) A locked diagonal formation of pawns, each one supported by a friendly pawn diagonally behind and blocked by an enemy pawn directly ahead.