Adjective open chain has 1 sense
  1. acyclic, open-chain - chemistry; not cyclic; having an open chain structure
,Noun open chain has 1 sense
  1. open chain - a chain of atoms in a molecule whose ends are not joined to form a ring
    --1 is a kind of
    chain, chemical chain
    Antonyms: closed chain, ring
    --1 has particulars: branched chain; straight chain
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