heavy hydrogen

noun

Definition of heavy hydrogen

First Known Use of heavy hydrogen

1933, in the meaning defined above

Keep scrolling for more

Learn More about heavy hydrogen

Statistics for heavy hydrogen

Look-up Popularity

Time Traveler for heavy hydrogen

The first known use of heavy hydrogen was in 1933

See more words from the same year

Keep scrolling for more

More Definitions for heavy hydrogen

heavy hydrogen

noun

Medical Definition of heavy hydrogen

More from Merriam-Webster on heavy hydrogen

Britannica.com: Encyclopedia article about heavy hydrogen

Comments on heavy hydrogen

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

WORD OF THE DAY

miscellaneous remnants or debris

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
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!