chain

(noun) a series of things depending on each other as if linked together. Synonyms: concatenation. Examples: "The chain of command." "A complicated concatenation of circumstances."

(noun) (chemistry) a series of linked atoms (generally in an organic molecule). Synonyms: chemical chain.

(noun) a series of (usually metal) rings or links fitted into one another to make a flexible ligament.

(noun) (business) a number of similar establishments (stores or restaurants or banks or hotels or theaters) under one ownership.

(noun) anything that acts as a restraint.

(noun) a unit of length.

(noun) British biochemist (born in Germany) who isolated and purified penicillin, which had been discovered in 1928 by Sir Alexander Fleming (1906-1979). Synonyms: Chain, Ernst Boris Chain, Sir Ernst Boris Chain.

(noun) a series of hills or mountains. Synonyms: range, mountain range, range of mountains, mountain chain, chain of mountains. Examples: "The valley was between two ranges of hills." "The plains lay just beyond the mountain range."

(noun) a linked or connected series of objects. Examples: "A chain of daisies."

(noun) a necklace made by a stringing objects together. Synonyms: string, strand. Examples: "A string of beads." "A strand of pearls";."

(verb) connect or arrange into a chain by linking.

(verb) fasten or secure with chains. Examples: "Chain the chairs together."