present participle of machine-gun

present participle of up-gun

present participle of gun down

(electronics) A kind of logic signaling used to drive electronic backplane buses, having a voltage swing between 0.4 and 1.2 volts—much lower than that used in TTL and CMOS logic—and symmetrical parallel resistive termination.

A readability metric for English writing, estimating how many years of formal education a person needs in order to understand the text on the first reading. It is based on the average sentence length and the proportion of words of three or more syllables.

A gun that propels a projectile by compressed air.

A type of gun, similar to a modern machine gun, with several barrels on a rotating frame.

A small cannon attached to a swivel or pivot. It was usually located on a ship's rail so it could have a large range of fire, and could fire anything ranging from small round balls of lead to cannon balls.

A toy gun that fires a plug of potato by compressing the air in the barrel, forcing the potato projectile out at speed.

A toy gun that emits a loud pop by firing a cork from a barrel in which a piston slides, compressing the air and forcing the cork out. The cork is traditionally attached to the toy by a piece of string.