(prosody) In qualitative metre, a metrical foot consisting of three syllables, two unstressed and one stressed (e.g., the word "interrupt").

(prosody) In quantitative metre, a metrical foot consisting of three syllables, two short and one long (e.g., Latin pariēs: pa-ri-ēs).

(prosody) A fragment, phrase or line of poetry or verse using this meter. For an example, see References.