What is "harquebuses"

Usage examples of "harquebuses".

In perhaps thirty seconds they reached it, and the gap in the wall lit up briefly as the first line of harquebuses fired, followed a moment later by a flame-gushing blast of gravel and stones from one of the culverins on the battlements.

Swords, daggers, crossbows and bolts, harquebuses, lances, arrows, maces were mixed higgledy-piggledy with more modern guns, rifles, blackjacks, grenades, and rocket launchers.