amphibrach(n = noun.communication) - a metrical unit with unstressed-stressed-unstressed syllables (e.g., `remember');
is a kind of foot, metrical foot, metrical unit

   A foot of three syllables, the middle one long, the first and last short (⌣ -- ⌣); as, h. In modern prosody the accented syllable takes the place of the long and the unaccented of the short; as, pro-phet\'b6ic. [1913 Webster]