from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hypothetical hole in outer space from which energy, stars, and other celestial matter emerge or explode.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A theoretically possible but physically highly unlikely singularity from which matter and energy are able to escape; the antithesis of a black hole.
white + (black) hole.(American Heritage® Dictionary of the English Language, Fourth Edition)