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† surdesolid, n. (a.) Math. Obs.
Also surdsolid.
[ad. mod.L. surdesolidus. Cf. It. surdesolido, G. † surdesolidalisch.
The origin of mod.L. surdesolidus is obscure. In Zedler's Universal Lexicon, s.v. Dignitas, the term is given as the name of the 5th power ‘according to the Arabs’, corresponding to quadratocubus, the name ‘according to Diophantus’; the 7th power is surdesolidum secundum, and the 11th surdesolidum tertium. If the term is of Arabic origin, it may = *surdē solidum, lit. deafly solid, i.e. of a power not ‘communicating with’, i.e. not derivable from, 2 or 3 or their powers (cf. the origin of mathematical L. surdus, surd a. note).]
= sursolid.
1557Recorde Whetst. H iij b, Thei appeare to bee ouersene, that call those..nombers Surdesolides, seing thei are not any waies Surde nombers. 1579Digges Stratiot. ii. i. 33 Squares, Cubes, Zenzizenzike, and Surd Solides. 1674S. Jeake Arith. (1696) 177 A Squared Cube Number [= numerus quadrato-cubus]..is called a Surdesolide, or Sursolide. 1726E. Stone New Math. Dict. s.v. Locus, The antient Geometricians did call Plain Loci, such that are Right Lines or Circles; and Solid Loci, those that are Parabola's, Ellipses, or Hyperbola's; and Surd-Solid Loci, such that are Curves of a superiour Gender than Conick Sections. 1728Chambers Cycl., Sursolid, or Surdesolid, in Arithmetic, the Fifth Power of a Number{ddd}32, the fifth Power, or Sursolid, or Surdesolid Number of 2. |