noun, technical - a serious mental condition in which a person gradually loses the ability to think, remember, and behave normally, usually because of disease or old age
noun - a slow-growing organism that arises from a symbiotic relationship between a fungus and an alga or cyanobacterium, often found on rocks, trees, or soil
adjective - describing a political system in which the government has total control over every part of people’s lives and does not allow any opposition or freedom
noun - the group of people who make laws in some countries, especially the United States, where it consists of the Senate and the House of Representatives