the greyish tissue of the brain and spinal cord, containing nerve cell bodies, dendrites, and bare (unmyelinated) axons Technical name substantia grisea Compare white matter
(informal) brains or intellect
[grey] /greɪ/ adjective, greyer, greyest, noun, verb (used with or without object) 1. 1 . /ɡreɪ/ adjective 1. of a neutral tone, intermediate between black and white, that has no hue and reflects and transmits only a little light 2. greyish in colour or having parts or marks that are greyish 3. dismal or dark, […]
- Grey nomad
noun 1. (Austral) any elderly retired person who spends time travelling around the country in a mobile home
- Grey nurse shark
noun 1. a common greyish Australian shark, Odontaspis arenarius
[greyn-vil, gren-] /ˈgreɪn vɪl, ˈgrɛn-/ noun 1. Sir Richard, .