Definition of fusion bomb
: a bomb in which nuclei of a light chemical element unite to form nuclei of heavier elements with a release of energy
especially
: hydrogen bomb — compare atom bomb
Test Your Vocabulary
Name That Food
-
- Name these cookies!

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share fusion bomb