autocannon

As nouns the difference between terms and autocannon

is that terms is while autocannon is a fully automatic projectile weapon similar to a machine gun, but firing shells instead of bullets and larger in calibre.

As a verb calibre

is .

As a noun autocannon is

a fully automatic projectile weapon similar to a machine gun, but firing shells instead of bullets and larger in calibre.

As nouns the difference between weapon and autocannon

is that weapon is an instrument of attack or defense in combat or hunting, eg most guns, missiles, or swords while autocannon is a fully automatic projectile weapon similar to a machine gun, but firing shells instead of bullets and larger in calibre.

As nouns the difference between projectile and autocannon

is that projectile is an object intended to be or having been fired from a weapon while autocannon is a fully automatic projectile weapon similar to a machine gun, but firing shells instead of bullets and larger in calibre.

As an adjective projectile

is projecting or impelling forward.

As nouns the difference between automatic and autocannon

is that automatic is a car with automatic transmission while autocannon is a fully automatic projectile weapon similar to a machine gun, but firing shells instead of bullets and larger in calibre.

As an adjective automatic

is capable of operating without external control or intervention.