[pi] also pie n, pl pies [origin unknown] (ca. 1659) 1: type that is spilled or mixed
2: a pi character or matrix
[2]pi also pie vb pied ; pi.ing or pie.ing vt (1870): to spill or throw (type or type matter) into disorder ~ vi: to become pied [3]pi adj (ca. 1940) 1: not intended to appear in final printing "~ lines"
2: capable of being inserted only by hand "~ characters" [4]pi n, pl pis [MGk, fr. Gk pei, of Sem origin; akin to Heb pe pe] (1823) 1: the 16th letter of the Greek alphabet
2. a: the symbol denoting the ratio of the circumference of a circle to its diameter b: the ratio itself: a transcendental number having a value to eight decimal places of 3.14159265