? Obs. [ad. Gr. τετραγωνισμός squaring, quadrature; see TETRAGON and -ISM.] The squaring of the circle; the quadrature of any curve.
1704. J. Harris, Lex. Techn., I. Tetragonism, with some Foreign Writers is the same as the Quadrature of the Circle.
1715. trans. Pancirollus’ Rerum Mem., II. xvii. 381. [They] affirm the Invention of the Tetragonism we are speaking of.
1727–41. in Chambers, Cycl.
So † Tetragonist, one who attempts the squaring of the circle; † Tetragonistic, † Tetragonistical adjs., of or pertaining to tetragonism; tetragonistic(al calculus, the differential calculus.
1674. Boyle, Excell. Theol., I. iii. 104. Such famous writers as Scaliger, Longomontanus, and other Tetragonists.
1710. J. Harris, Lex. Techn., II. Tetragonistick Calculus, is the same with the Summatory or Differential Calculus of Leibnitz.
1727. Bailey, vol. II., Tetragonistical Calculus.
