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A trisyllabic metrical foot having one accented or long syllable between two unaccented or short syllables, as in the word remember.
(Poetry) prosody a metrical foot consisting of a long syllable between two short syllables (˘¯˘). Compare cretic
[C16: from Latin, from Greek amphibrakhus, literally: both ends being short, from amphi- + brakhus short]
a trisyllabic metrical foot whose syllables are short, long, short in quantitative meter, and unstressed, stressed, unstressed in accentual meter.
[1580–90; < Latin amphibrachus < Greek amphíbrachys short at both ends =amphi- amphi- + brachýs short]