nonintegeradj.n.
/nɒnˈɪntᵻdʒə/, U.S. /nɑnˈɪn(t)ədʒər/ Chiefly Mathematics.
A. adj.
Not having an integral value. Cf. non-integral adj.
ΚΠ
1865 Philos. Trans. 1864 (Royal Soc.) 154 610 The value of g for which the probability [μ, ν, g] is greatest is the integer part of μν/ μ + ν + 1, if that quantity is non-integer.
1924 Biometrika 16 114 By evaluating the constants a, b, α, β entering in the coefficients of this series.., one finds as a rule non-integer numbers.
1959 Operations Res. 7 624 Noninteger solutions reveal this to be necessary.
1993 Computers & Humanities 37 278/1 Fractals themselves are topological surfaces describing complex geometries with a non-integer (fractal) dimension.
B. n.
A number other than an integer.
ΚΠ
1938 Proc. National Acad. Sci. U.S.A. 24 187 To a rational integer (respectively non-integer) corresponds a primitive subset of type (i) (respectively (ii)).
1956 Science 20 July 120/1 (title) Encoding nonintegers in a general p-adic number system.
1992 Sci. Amer. Dec. 102/3 The eleventh [chapter] is called after the decisive noninteger that Leonhard Euler named e.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.n.1865