accretion disk


accretion disk

noun

Definition of ACCRETION DISK

:  a disk of usually gaseous matter surrounding a massive celestial object (as a black hole) in which the matter gradually spirals in toward and accretes onto the object as a result of gravitational attraction

First Known Use of ACCRETION DISK

1972

Browse

Next Word in the Dictionary: accroach
Previous Word in the Dictionary: accretion cutting
All Words Near: accretion disk

Seen & Heard

What made you want to look up accretion disk? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More