/am fim"euh seuhr/ , n. Pros.
a trisyllabic foot, the arrangement of the syllables of which is long, short, long in quantitative meter, or stressed, unstressed, stressed in accentual meter, as anodyne, an accentual amphimacer.
[ 1580-90; amphimacrus amphímakros long at both ends. See AMPHI-, MACRO-; cf. AMPHIBRACH ]