'Minuteman' definitions:

Definition of 'Minuteman'

(from WordNet)
noun
An American militiaman prior to and during the American Revolution
noun
A strategic weapon system using a guided missile of intercontinental range; missiles are equipped with nuclear warheads and dispersed in hardened silos

Definition of 'Minuteman'

From: GCIDE
  • Minuteman \Min"ute*man\, n.; pl. Minutemen. A militiaman who was to be ready to march at a moment's notice; -- a term used in the American Revolution. [1913 Webster]