1. (n.) The trachea or windpipe.

2. (n.) One of the vessels or tubes which carry either venous or arterial blood from the heart. They have thicker and more muscular walls than veins, and are connected with them by capillaries.

3. (n.) Hence: Any continuous or ramified channel of communication; as, arteries of trade or commerce.

Autobahn US highway access aisle alley alleyway ambulatory aorta aperture arcade arterial arterial highway arterial street arteriole autoroute autostrada avenue belt highway blind alley blood vessel boulevard bypass byway camino real capillary carotid carriageway causeway causey channel chaussee circumferential cloister close colonnade communication conduit connection corduroy road corridor county road court covered way crescent cul-de-sac dead-end street defile dike dirt road drag drive driveway exit expressway ferry ford freeway gallery gravel road highroad highway highways and byways inlet interchange intersection interstate highway jugular vein junction lane local road main drag main road mews motorway opening outlet overpass parkway pass passage passageway path pave paved road pike place plank road portal vein portico primary highway private road pulmonary artery pulmonary vein railroad tunnel right-of-way ring road road roadbed roadway route nationale row royal road secondary road speedway state highway street superhighway terrace thoroughfare through street thruway toll road township road track traject trajet tunnel turnpike underpass vein veinlet vena cava venation venule wynd