Online Dictionary

At full cock Explained

At full cock at English => English (Websters 1913) Of Explained:

Cock \Cock\, n. [It. cocca notch of an arrow.]
1. The notch of an arrow or crossbow.

2. The hammer in the lock of a firearm.

{At cock}, {At full cock}, with the hammer raised and ready
to fire; -- said of firearms, also, jocularly, of one
prepared for instant action.

{At half cock}. See under {Half}.

{Cock feather} (Archery), the feather of an arrow at right
angles to the direction of the cock or notch. --Nares.