U‧na‧bomb‧er /ˈjuːnəˌbɒməʳ $ -ˌbɑː-/
the name given in newspapers etc to a man who, over a period of 18 years, sent 16 bombs through the mail to US universities and other organizations, in order to protest against technology. In 1996 the FBI arrested Theodore Kaczynski, a former university professor, for these crimes, and in 1998 he was sent to prison for life.

[TahlilGaran] Dictionary of Contemporary English ▲