iambus

noun

1. a metrical unit with unstressed-stressed syllables

   noun.communication

   Synonyms iamb

   Source: WordNet 3.0

2. A foot consisting of a short syllable followed by a long one, as in <i>&abreve;m&amacr;ns</i>, or of an unaccented syllable followed by an accented one, as <i>invent</i>; an iambic. See the Couplet under <u>Iambic</u>, <pos><i>n.</i></pos>

   noun

   Source: webster1913