biuniqueadj.

1941 O. Helmer tr. A. Tarski Introd. Logic xxxiii. 103 One-to-one relations or biunique functions.

1944 Z. S. Harris in Language 20 187 We are preserving the bi-unique one-to-one correspondence of phonemic writing. (The term bi-unique implies that the one-to-one correspondence is valid whether we start from the sounds or from the symbols: for each sound one symbol, for each symbol one sound.)

1953 A. A. Fraenkel Abstract Set Theory i. 31 We pointed out the difference between biunique (one-to-one) and merely unique correspondence.

1956 Nature 11 Feb. 283/2 The combination of solutions that bring about the disappearance of the abnormal symptom defines the element responsible, because elements and combinations are in a biunique correspondence.

1968 P. M. Postal Aspects Phonol. Theory iii. 51 He argues fallaciously that a biunique phonemic level (called ‘C-phonemics’) is necessary to distinguish those phonetic features which are distinctive from those which are not.

1975 N. Chomsky Logical Struct. Ling. Theory vii. 187 By definition, the set of ρ-derivations is uniquely determined by P. Thus if ρ^τ is defined to uniqueness in terms of ρ, one part of this biunique relation will hold.

1959 F. W. Householder in S. Saporta & J. R. Bastian Psycholinguistics (1961) 22/1 Segmentation in morphology is also troubled by the stipulation of biuniqueness.

1968 P. M. Postal Aspects Phonol. Theory iii. 51 Most crucially, perhaps, Lamb states quite clearly as justification of the Biuniqueness Principle..the fallacious argument documented and analyzed in Chapters 1 and 2.

1981 Amer. Speech 1977 52 171 The insistence upon phonemic biuniqueness must be given up.

1975 N. Chomsky Logical Struct. Ling. Theory vii. 187 We..require that P be related biuniquely to ρ^τ, in the sense that P be uniquely recoverable from ρ^τ, and ρ^τ be uniquely constructible from P.