american twinflower: similar to the twinflower of northern Europe and Asia
twinflower: creeping evergreen subshrub of the northern parts of Europe and Asia with delicate fragrant tubular bell-shaped usually pink flowers borne in pairs
firewall: (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