follow Dictionary.com

What do a.m. and p.m. stand for?

dark cloud

dark cloud in Science
dark cloud
  (därk)   
See absorption nebula.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Examples from the web for dark cloud

Word of the Day

Word Value for dark

9
9
Scrabble Words With Friends

Quotes with dark cloud