hex·am·e·ter /hɛkˈsæmətɚ/
  六步格,六步格的詩(a.)六步格的
  Hex·am·e·ter n.  Gr. & Lat. Pros. A verse of six feet, the first four of which may be either dactyls or spondees, the fifth must regularly be a dactyl, and the sixth always a spondee. In this species of verse are composed the Iliad of Homer and the Aeneid of Virgil. In English hexameters accent takes the place of quantity.
     Leaped like the | roe when he | hears in the | woodland the | voice of the | huntsman.   --Longfellow.
  Strongly it | bears us a- | long on | swelling and | limitless | billows,
  Nothing be- | fore and | nothing be- | hind but the | sky and the | ocean.   --Coleridge.
  Hex·am·e·ter, a. Having six metrical feet, especially dactyls and spondees.
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  hexameter
       n : a verse line having six metrical feet