DEFINITION of 'Commodity'. 1. A basic good used in commerce that is interchangeable with other commodities of the same type.
Brain Aneurysm Symptoms & Signs. A brain aneurysm is a bulging area within the wall of an artery that supplies the brain. In most cases, brain aneurysms do not produce symptoms. In some cases, the aneurysm may cause symptoms by pushing on other areas of the brain. Depending on the size of the aneurysm and the area involved, these symptoms can include headaches, neck pain, blurred vision, and speech changes.
Ruptured Cerebral Aneurysm Symptoms. When an aneurysm ruptures, called subarachnoid hemorrhage, people often complain of the worst headache of their life.. Other ruptured cerebral aneurysm symptoms include: 1  Nausea and vomiting. 2  Stiff neck or neck pain. 3  Blurred vision or double vision. 4  Pain above and behind the eye.