octameter
meter consisting of eight metrical feet
trochaic octameter
meter consisting of eight trochees
trochaic septenarius
poetic meter, consisting of 8 feet, with the last a half-foot; the 7th is regularly trochaic; the other feet can be varied with a spondee, dactyl, tribrach, or more rarely an anapaest; there is usually a diaeresis after the fourth foot