null-space

[ nuhl-speys ]
/ ˈnʌlˌspeɪs /

noun Mathematics.

the set of elements of a vector space that a given linear transformation maps to zero.
Also called null-man·i·fold [nuhl-man-uh-fohld] /ˈnʌlˌmæn əˌfoʊld/.

Origin of null-space

First recorded in 1880–85