unitary /ˈjuːnɪt(ə)ɹi/adjective 4noun 2forms 1 adjective4 •Having the quality of oneness. •That concentrates power in a single body, rather than sharing it with more local bodies. •Whose inverse is equal to its adjoint.The eigenvectors of an orthogonal or unitary operator, corresponding to different eigenvalues, are orthogonal. — 1997 •That contains an identity element. noun2 •(UK) A unitary council.Outside the metropolitan areas most councils (English and Welsh counties, London boroughs, Scottish and Welsh unitaries, and Northern Ireland districts) are now elected en bloc every four years. — 2005 •A unitary matrix or operator.Since ergodicity and mixing are expressible in terms of the induced Koopman unitaries they are not additional invariants. — 1980 formsunitaries
