Definition of 'chain'

Noun

1. a series of things depending on each other as if linked together; "the chain of command"; "a complicated concatenation of circumstances"
      Synonyms: concatenation
2. (chemistry) a series of linked atoms (generally in an organic molecule)
      Synonyms: chemical chain
3. a series of (usually metal) rings or links fitted into one another to make a flexible ligament
4. a number of similar establishments (stores or restaurants or banks or hotels or theaters) under one ownership
5. anything that acts as a restraint
6. a unit of length
7. British biochemist (born in Germany) who isolated and purified penicillin, which had been discovered in 1928 by Sir Alexander Fleming (1906-1979)
      Synonyms: Ernst Boris Chain Sir Ernst Boris Chain
8. a series of hills or mountains; "the valley was between two ranges of hills"; "the plains lay just beyond the mountain range"
      Synonyms: range mountain range range of mountains mountain chain chain of mountains
9. a necklace made by a stringing objects together; "a string of beads"; "a strand of pearls";
      Synonyms: string strand

Verb

1. connect or arrange into a chain by linking
2. fasten or secure with chains; "Chain the chairs together"
      Antonyms: unchain

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