“energy equation”

We have one entry that includes the term energy equation.

mass-energy equation

noun

: an equation for the interconversion of mass and energy: E = MC2 where E is energy in ergs, M is mass in grams, and C is the velocity of light in centimeters per second compare conservation of energy, conservation of mass


Challenging Words You Should Know

  • hedgehog reading a book
  • Often used to describe “the march of time,” what does inexorable mean?
Spell It

Hear a word and type it out. How many can you get right?

TAKE THE QUIZ
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.

Pick the best words!

PLAY
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!