nBacchius(Pros) A metrical foot composed of a short syllable and two long ones; according to some, two long and a short.
Century Dictionary and Cyclopedia
nbacchiusIn prosody, a foot composed of one short and two long syllables, with the ictus on the first long, as in ăvā′ rī, ăbōve′ bōard. See antibacchius and hemiolic. [Before the Alexandrine period Βακχει%128ος meant the )Ιωνικός (see Ionic) or the χορίαμβος (see choriamb.) Beginning with that period, the Βακχει%26ος was , and ὑποβάκχειος (ἀντιβάκχειος, παλιυβάκχειος) . Hephæstion, Quintilian, and other writers invert this, and make the Βακχει%26ος , and παλιμβάκχειος (etc.) .]
Webster's Revised Unabridged Dictionary
L. Bacchius, pes, Gr. "o Bakchei^ossc. poy`s foot)
BACCHIUS: there Were several persons of this name, and the one meant is perhaps the musician.