părĭambus
i, m.
I.
A metrical foot consisting of a short and two long syllables (˘¯¯), Diom. p. 475 P.—
II.
A metrical foot consisting of a long and four short syllables (¯˘˘˘˘), Diom. p. 478 P.—
III.
A metrical foot consisting of two short syllables, commonly called a pyrrhichius, Diom. p. 471 P.; cf. Mar. Vict. p. 2486 ib.; Quint. 9, 4, 80.