Amphibrach /(ăm"fĭ*brăk)/

Am·phi·brach

Amphibrach

n.
  1. A foot of three syllables, the middle one long, the first and last short (⌣ -- ⌣); as, hăbērĕ. In modern prosody the accented syllable takes the place of the long and the unaccented of the short; as, pro*phet"ic. (Anc. Pros.)