
1) Firearm component
Found on
https://www.crosswordclues.com/clue/frizzen

The frizzen, historically called the steel, is an `L` shaped piece of steel hinged at the rear used in flintlock firearms. It is positioned over the flash pan so as to enclose a small priming charge of black powder next to the flash hole that is drilled through the barrel into where the main charge is loaded. When the trigger is pulled, the hamm.....
Found on
http://en.wikipedia.org/wiki/Frizzen

(from the article `flintlock`) ...by the percussion lock in the first half of the 19th century. The best-developed form, the true flintlock, was invented in France in the early ... ...several different types of flintlocks that were produced, the flint was always held in a small vise, called a cock, which described an arc around ... [...
Found on
http://www.britannica.com/eb/a-z/f/65

See flintlock.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

That part of a flintlock action that receives the blow of the flint-tipped hammer, which then yields tiny molten fragments of steel---sparks---which fall into the flashpan, igniting the priming charge and thence, through the touchhole, the main charge.
Found on
http://www.hallowellco.com/abbrevia.htm
No exact match found.