Search Result for "letter-bomb": 

The Collaborative International Dictionary of English v.0.48:

letter bomb \let"ter bomb`\, letter-bomb \let"ter-bomb`\n. A bomb disguised as a letter and sent through the mail, usually rigged to explode and kill or harm the recipient when opened. [WordNet 1.5]
The Collaborative International Dictionary of English v.0.48:

letter-bomb \letter-bomb\ v. t. to send a letter-bomb to. [WordNet 1.5]