a hypothetical form of matter invisible to electromagnetic radiation, postulated to account for gravitational forces observed in the universe.
[ 1985-90 ]
a hypothetical form of matter invisible to electromagnetic radiation, postulated to account for gravitational forces observed in the universe.
[ 1985-90 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012