non-uniqueadj.n.
/ˌnɒnjuːˈniːk/, /ˌnɒnjᵿˈniːk/, U.S. /ˌnɑnjuˈnik/ Not unique; that is not the only instance or case. Also as n.: that which is not unique.
ΚΠ
1917 Trans. Amer. Math. Soc. 18 448 In the case n1 + n2 < m = 1 in (3) and for the non-unique cases of (4) the above proof does not hold.
1925 F. J. Teggert Theory Hist. v. 56 The definition of the unique by its opposite assumes..that the historian separates the unique totality from which he sets out into two classes: the unique and the non-unique.
1938 Ann. Math. 39 786 Work has been done in the study of non-unique solutions of systems of ordinary differential equations of the first order.
1960 Nucl. Physics 16 683 (heading) Branching ratios of K capture to positon emission in non-unique first forbidden 2−→2+ beta transitions.
1970 B. Brewster tr. L. Althusser & E. Balibar Reading Capital (1975) ii. 196 This ‘average’ is not an empiricist average, i.e., it does not connote the non-unique.
1999 R. L. Montgomery Introd. Sociol. Missions 161 Human beings have to live to a great extent according to the nonunique aspects of life.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.n.1917