Dictionary

deep space

noun

Definition of DEEP SPACE

:  space well outside the earth's atmosphere and especially that part lying beyond the earth-moon system

First Known Use of DEEP SPACE

circa 1952

Browse

Next Word in the Dictionary: deep stonePrevious Word in the Dictionary: deep–skyAll Words Near: deep space
May 30, 2015
metadata Hear it
data about other data
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears