PETN

noun
\ˌpē-ˌē-ˌtē-ˈen \

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

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The first known use of PETN was in 1944

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