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imaginary
Existing only in the imagination. / (mathematics, of a number) Having no real part; that part of a complex number which is a multiple of √ (called imaginary unit).
imaginary
Imagination; fancy. / (mathematics) An imaginary quantity.
imaginaries
imaginariness
imaginary numbers
plural of imaginary number
imaginary parts
plural of imaginary part
imaginary unit
(number theory, complex analysis, quaternion theory) An imaginary number (in the case of complex numbers, usually denoted i) that is defined as a solution to the equation i²=-1.
imaginary geometry
(geometry) Absolute geometry, an axiomatised geometry in which the parallel postulate is absent and not replaced by an alternative, and of which Euclidean geometry and some non-Euclidean geometries are subtypes.
imaginary units
plural of imaginary unit
imaginary number
(complex analysis, strict sense) A number of the form bi, where b is any real number and i denotes the imaginary unit.
