Pi

• POS: Noun, Verb (usu participle), Verb (transitive), Adverb

CIDE DICTIONARY

Pi, n. [See Pica, Pie magpie, service-book.].

 A mass of type confusedly mixed or unsorted.  [1913 Webster]

Pi, n. [Gr. pi^.].

•  A Greek letter (P.  [Webster 1913 Suppl.]
•  The letter pi, to twenty decimal places, is 3.14159265358979323846 (see note). The number pi is an irrational number, i.e. it cannot be expressed as the quotient of two integers. It is also a transcendental number, i.e. it cannot be expressed as a root of an algebraic equation with a finite number of terms; and from this fact follows the impossibility of the quadrature of the circle by purely algebraic processes, or by the aid of a ruler and compass.  [Webster 1913 Suppl.]

  " The first 1000 decimal digits of the number pi are as displayed below.
  
  The digits are arranged as five sets of ten digits per line in twenty lines, proceeding left to right in each line.
  
  3.
  1415926535 8979323846 2643383279 5028841971 6939937510
  5820974944 5923078164 0628620899 8628034825 3421170679
  8214808651 3282306647 0938446095 5058223172 5359408128
  4811174502 8410270193 8521105559 6446229489 5493038196
  4428810975 6659334461 2847564823 3786783165 2712019091
  4564856692 3460348610 4543266482 1339360726 0249141273
  7245870066 0631558817 4881520920 9628292540 9171536436
  7892590360 0113305305 4882046652 1384146951 9415116094
  3305727036 5759591953 0921861173 8193261179 3105118548
  0744623799 6274956735 1885752724 8912279381 8301194912
  9833673362 4406566430 8602139494 6395224737 1907021798
  6094370277 0539217176 2931767523 8467481846 7669405132
  0005681271 4526356082 7785771342 7577896091 7363717872
  1468440901 2249534301 4654958537 1050792279 6892589235
  4201995611 2129021960 8640344181 5981362977 4771309960
  5187072113 4999999837 2978049951 0597317328 1609631859
  5024459455 3469083026 4252230825 3344685035 2619311881
  7101000313 7838752886 5875332083 8142061717 7669147303
  5982534904 2875546873 1159562863 8823537875 9375195778
  1857780532 1712268066 1300192787 6611195909 2164201989
  "  [Webster 1913 Suppl.]

Pi, v. t. 

 To put into a mixed and disordered condition, as type; to mix and disarrange the type of; as, to pi a form.  [1913 Webster]

OXFORD DICTIONARY

Pi, n.
1 the sixteenth letter of the Greek alphabet.
2 (as &pi.) the symbol of the ratio of the circumference of a circle to its diameter (approx. 3.14159).

Idiom

pi-meson = PION.

Pi, adj. Brit. sl. pious.

Idiom

pi jaw a long moralizing lecture or reprimand.

Pi, US var. of PIE(3).

THESAURUS

Pi

ascender, back, ball up, bastard type, beard, belly, bevel, black letter, body, bollix up, cap, capital, case, compose, confound, confuse, counter, descender, em, en, face, fat-faced type, feet, font, foul up, fumble, garble, groove, impose, italic, jumble, justify, letter, ligature, logotype, lower case, majuscule, make up, minuscule, mix up, muck up, muddle, nick, overrun, pi a form, pica, play hob with, point, print, riffle, roman, sans serif, scramble, screw up, script, set, set in print, shank, shoulder, shuffle, small cap, small capital, snafu, snarl up, stamp, stem, tumble, type, type body, type class, type lice, typecase, typeface, typefounders, typefoundry, upper case

ROGET THESAURUS

Pi

Printing

N printing, block printing, type-printing, plate printing, (engraving), the press, composition, print, letterpress, text, context, note, page, column, typography, stereotype, electrotype, aprotype, type, black letter, font, fount, pi, pie, capitals, brevier, bourgeois, pica boldface, capitals, caps, catchword, composing-frame, composing room, composing rule, composing stand, composing stick, italics, justification, linotype, live matter, logotype, lower case, upper case, make-up, matrix, matter, monotype, 4-1/2 point, 5 point, 5-1/2 point, 6 point, 7 point, 8 point, press room, press work, reglet, roman, running head, running title, scale, serif, shank, sheet work, shoulder, signature, slug, underlay, folio, copy, impression, pull, proof, revise, author's proof, galley proof, press proof, press revise, printer, compositor, reader, printer's devil copyholder, printed, in type, typographical, solid in galleys.