Anat.
nerve tissue, esp. of the brain and spinal cord, which primarily contains myelinated fibers and is nearly white in color. Cf. gray matter (def. 1).
[ 1830-40 ]
Anat.
nerve tissue, esp. of the brain and spinal cord, which primarily contains myelinated fibers and is nearly white in color. Cf. gray matter (def. 1).
[ 1830-40 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012