单词	PETN
释义	PETN noun ˌpē-ˌē-ˌtē-ˈen  : 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 Word History Etymology pentaerythritol tetranitrate First Known Use 1944, in the meaning defined above
随便看	catwort catydid catzerie cau caubeen Cauca caucasi caucasia caucasiae Caucasian Caucasian walnut caucasians caucasias Caucasic caucasoid caucasoids Caucasus caucasus indicus Caucasus Indicus Caucasus Mountains caucasuses caucasusses cauch cauchero cauchillo

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