Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

blackbody

play
noun black·body \ˈblak-ˈbä-dē\

Definition of blackbody

  1. :  an ideal body or surface that completely absorbs all radiant energy falling upon it with no reflection and that radiates at all frequencies with a spectral energy distribution dependent on its absolute temperature



1710

First Known Use of blackbody

1710


Learn More about blackbody


Seen and Heard

What made you want to look up blackbody? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 14, 2016

to hug and kiss another person

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

16.96 pounds 100 pounds 196.5 pounds 2.2 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ