n (colloquial) the application of maximum thrust
he moved the throttle to the firewall
n (computing) a security system consisting of a combination of hardware and software that limits the exposure of a computer or computer network to attack from crackers; commonly used on local area networks that are connected to the internet
n a fireproof (or fire-resistant) wall designed to prevent the spread of fire through a building or a vehicle
n tall North American perennial with creeping rootstocks and narrow leaves and spikes of pinkish-purple flowers occurring in great abundance in burned-over areas or recent clearings; an important honey plant
n an American weedy plant with small white or greenish flowers