black carbon

noun

Definition of black carbon

:a granular form of pure carbon that is the primary component of soot
  • But soot—also known as black carbon—from tens of thousands of villages like this one in developing countries is emerging as a major and previously unappreciated source of global climate change.
  • —Elisabeth RosenthalNew York Times16 Apr. 2009
  • The chief culprit in global warming is carbon dioxide, but recent studies show that black carbon may account for as much as half of Arctic warming.
  • —Bill WalkerIn BriefSummer 2009

There's more!

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!
Already a subscriber? Log in.

First Known Use of black carbon

1825


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

to buzz or drone

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

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

TAKE THE QUIZ

Love words? Need even more definitions?

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