I. ˈpī noun
( plural pis ˈpīz)
Etymology: Middle Greek, from Greek pei, of Semitic origin; akin to Hebrew pē pe
Date: 1638
1. : the 16th letter of the Greek alphabet — see alphabet table
2.
a. : the symbol π denoting the ratio of the circumference of a circle to its diameter
b. : the ratio itself : a transcendental number having a value rounded to eight decimal places of 3.14159265
II. ˈpī noun
also pie
( plural pies )
Etymology: origin unknown
Date: circa 1659
1. : type that is spilled or mixed
2. : a pi character or matrix
III. verb
also pie
( pied ; pi·ing or pie·ing )
Date: 1889
transitive verb
: to spill or throw (type or type matter) into disorder
intransitive verb
: to become pied
IV. adjective
also pie
Date: circa 1940
1. : not intended to appear in final printing
pi lines
2. : capable of being inserted only by hand
pi characters