D defs.my
Entry 1 sense Webster, 1913

open-chain

· IPA
01 adj. not cyclic; having no rings of atoms within the molecular structure; having an open chain structure. Opposite of cyclic.
  1. 1.
    not cyclic; having no rings of atoms within the molecular structure; having an open chain structure. Opposite of cyclic.(Chemistry)
Syn. acyclic.