carbon 13

noun

Definition of carbon 13 

: an isotope of carbon of mass number 13 that constitutes about ¹/₇₀ of natural carbon and is used as a tracer especially in spectroscopy utilizing nuclear magnetic resonance

First Known Use of carbon 13

1936, in the meaning defined above

Keep scrolling for more

Learn More about carbon 13

Statistics for carbon 13

Look-up Popularity

Time Traveler for carbon 13

The first known use of carbon 13 was in 1936

See more words from the same year

More from Merriam-Webster on carbon 13

See words that rhyme with carbon 13

Comments on carbon 13

What made you want to look up carbon 13? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to reject or criticize sharply

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
True or False

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

TAKE THE QUIZ
Bee Cubed

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!