I. te.ˈtraməd.ə(r), -ətə- noun
Etymology: Greek tetrametron, from neuter of tetrametros of four measures
: a line of four measures consisting either of four dipodies (as in classical iambic, trochaic, and anapaestic verse) or four feet (as in modern English verse)
II. adjective
Etymology: Late Latin, from Greek tetrametros, from tetra- + -metros (akin to Greek metron measure, meter) — more at measure
: consisting of four dipodies or four metrical feet