Definition of "GCR"
GCR
noun
uncountable
(space science) Initialism of Galactic Cosmic Radiation.
(UK, rail transport) Initialism of Great Central Railway.
(education, UK, rare) Initialism of Graduate Common Room (in certain British universities.)
uncountable
(space science) Initialism of Galactic Cosmic Radiation.
(UK, rail transport) Initialism of Great Central Railway.
(education, UK, rare) Initialism of Graduate Common Room (in certain British universities.)