四音步句
Tetrameter \Te*tram"e*ter\, n. [L. tetrametrus, Gr. ?; te`tra-
(see {Tetra-}) + ? a measure: cf. F. t['e]tram[`e]tre.] (GR.
& Latin Pros.)
A verse or line consisting of four measures, that is, in
iambic, trochaic, and anapestic verse, of eight feet; in
other kinds of verse, of four feet.
tetrameter
n : a verse line having four metrical feet