An English surname transferred from the nickname, originally a nickname for someone with strong arms. / A city in the province of Santa Fe, Argentina.

Short for Armstrong gun.

plural of Armstrong

The altitude above sea level at which water boils without a pressurized environment, and at which a person would require a pressure suit or pressurized environment to survive, and avoid having their bodily fluids boil away.

A wrought iron breechloading cannon.

plural of Armstrong gun

One of 67 counties in Pennsylvania, United States. County seat: Kittanning. Named after John Armstrong Sr.

(navy, slang) Strenuous manual work; pulling or hauling; muscle power.

(horse racing, archaic, slang) A form of cheating in which the jockey deliberately pulls his horse back so that it does not win.

(databases) A set of references (or, more precisely, inference rules) used to infer all the functional dependencies on a relational database.