Definitions of iambus

  1. a metrical unit with unstressed- stressed syllables
  2. A foot consisting of a short syllable followed by a long one, as in mans, or of an unaccented syllable followed by an accented one, as invent; an iambic. See the Couplet under Iambic, n.
  3. A metrical foot of two syllables, the first short and the second long.
  4. A foot consisting of a short followed by a long syllable.
  5. An iambic foot.