Noun
(military) Large and powerful artillery, often large-caliber and large-distance.
Coordinate terms: light artillery, medium artillery
(figuratively) The most powerful means that can be used to carry out something.
Synonym: big guns
I am anxious to get as many of these negro regiments as possible, and to have them full, and completely equipped. I am particularly desirous of organizing a regiment of heavy artillery from the negroes, to garrison this place, and shall do so as soon as possible. Ulysses S. Grant
I have observed that baseball is not unlike war, and when you get right down to it, we batters are the heavy artillery. Ty Cobb
A statement issued by the military spokesperson, Major General Lul Ruai stated that a unit of the Ugandan army armed with heavy artillery and light military truck launched an attack on the South Sudan army defensive border outpost in the area. Source: Internet
Attacks were screened by smoke, heavy artillery, and armour support, but the infantry charged in the open and in dense formations. Source: Internet
Fighting fire with fire and bringing out the heavy artillery will be required if the Sharks want to overpower a physical Pumas outfit on Friday night, Sharks prop Ox Nche says. Source: Internet
British heavy artillery worked energetically to progressively solve all these problems from late 1914 onwards, and by early 1918, had effective processes in place for both field and heavy artillery. Source: Internet