white matter defined in 1951 yearwhite matter - white matter;
white matter - Tissue of central nervous system of vertebrates, mainly formed of nerve fibres whose myelin gives it glistening white appearance. Glia and blood-vessels also present. Lies as a layer predominantly outside grey matter, forming the tracts connecting different parts of the central nervous system together.
near white matter in Knolik
definition of word "white matter" was readed 947 times