Definitions for iambˈaɪ æm, ˈaɪ æmb
Random House Webster's College Dictionary
i•ambˈaɪ æm, ˈaɪ æmb(n.)
a prosodic foot of two syllables, a short followed by a long in quantitative meter, or an unstressed followed by a stressed in accentual meter, as in
Come live / with me / and be / my love.
Origin of iamb:
1835–45; short for iambus
a metrical unit with unstressed-stressed syllables
A metrical foot in verse consisting of an unstressed syllable followed by a stressed syllable.
Origin: From iambe, from iambus.
an iambus or iambic