Term: circle of willis: a ring of arteries at the base of the brain
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: amnesty: a period during which offenders are exempt from punishment
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: western pipistrel: of western North America
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: briton: an inhabitant of southern Britain prior to the Anglo-Saxon invasions
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: balaenidae: right whales
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: cricket: a game played with a ball and bat by two teams of 11 players; teams take turns trying to score runs
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: shortgrass: any of various grasses that are short and can tolerate drought conditions; common on the dry upland plains just east of the Rocky Mountains
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: tribonema: type genus of Tribonemaceae
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: fowling piece: a light shotgun used for fowling
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: candied fruit: fruit cooked in sugar syrup and encrusted with a sugar crystals
Broader: tube: (anatomy) any hollow cylindrical body structure | Unrelated: keg: small cask or barrel