PETN

noun
\ ˌpē-ˌē-ˌtē-ˈen How to pronounce PETN (audio) \

Definition of PETN

: a crystalline ester C5H8N4O12 used as a powerful high explosive and medically in the treatment of angina pectoris … the experts determined that its explosive content was identical to that of the Honolulu bomb—PETN, an explosive undetectable by X-ray.— Steven Emerson

called also pentaerythritol tetranitrate

First Known Use of PETN

1944, in the meaning defined above

History and Etymology for PETN

pentaerythritol tetranitrate

Keep scrolling for more

Learn More about PETN

Statistics for PETN

Cite this Entry

“PETN.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/PETN. Accessed 10 December 2019.

Comments on PETN

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

WORD OF THE DAY

to state or do over again or repeatedly

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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!