(physics) A collider-based scientific machine designed to produce a large number (at least 10⁹) of B mesons.

(medicine, archaic) A variety of bandy leg, associated with partial dislocation of the tibia, once seen in young children who worked in factories.

plural of factory reset

plural of factory farm

(slang) A breast (that is producing milk).

plural of factory team

(UK, historical) An aircraft factory in the World War II era, partly staffed by people from the motor industry, that was kept hidden from enemy aircraft.

plural of factory ship

(nautical) a vessel, usually part of a fleet, which processes catches of fish or whales while at sea

(historical) A factory of a particular architectural style, having a concrete frame and floor-to-ceiling windows, allowing in natural light.