noun
: any of three arteries in the brain that complete the circle of Willis, one connecting the anterior cerebral arteries and two connecting the internal carotids with the posterior cerebrals
noun
: any of three arteries in the brain that complete the circle of Willis, one connecting the anterior cerebral arteries and two connecting the internal carotids with the posterior cerebrals
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012