Definition of singular
1 a
:of or relating to a separate person or thing :individual
b
:of, relating to, or being a word form denoting one person, thing, or instance
- a singular noun
c
:of or relating to a single instance or to something considered by itself
2
:distinguished by superiority :exceptional
- an artist of singular attainments
3
:being out of the ordinary :unusual
- on the way home we had a singular adventure
5 a
of a matrix
:having a determinant equal to zero
b
of a linear transformation
:having the property that the matrix of coefficients of the new variables has a determinant equal to zero
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