open chain

Noun
  1. A chain of atoms in a molecule whose ends are not joined to form a ring (synset 109401841)
    is a type of: chain, chemical chain - (chemistry) a series of linked atoms (generally in an organic molecule)
    subtypes:
    • branched chain - an open chain of atoms with one or more side chains attached to it
    • straight chain - an open chain of atoms with no side chains

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