[{"Bold_text": "noun", "List Items": ["an obstruction of the circulatory system caused by air, as may arise during surgery.", "Also calledthe bends[th, uh, , bendz],an acute condition caused by a rapid substantial decrease in atmospheric pressure, as in high-altitude flying and coming up from deep-sea diving, characterized by the formation of nitrogen bubbles in the blood, severe pain in the lungs and joints, and neurological impairment."]}]