(in the Peninsular War) a Spanish guerrilla who fought against the French.
a soldier in any of several Spanish infantry regiments.
a flintlock of a type developed in Spain.

Also miguelet.

Origin of miquelet

1660–70; < Catalan, equivalent to Miquel Michael + -et -et
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019