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

Share 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

evasion of direct action or statement

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

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!