Term: respiratory system: the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing
Broader: thing: a separate and self-contained entity | Unrelated: endoparasite: any of various parasites that live in the internal organs of animals (especially intestinal worms)
Broader: thing: a separate and self-contained entity | Unrelated: theodicy: the branch of theology that defends God's goodness and justice in the face of the existence of evil
Broader: thing: a separate and self-contained entity | Unrelated: clear liquid diet: a diet of fluids with minimal residues (fat-free broth or strained fruit juices or gelatin); cannot be used for more than one day postoperative
Broader: thing: a separate and self-contained entity | Unrelated: flood: a large flow
Broader: thing: a separate and self-contained entity | Unrelated: security blanket: anything that an adult person uses to reduce anxiety
Broader: thing: a separate and self-contained entity | Unrelated: quality of life: your personal satisfaction (or dissatisfaction) with the cultural or intellectual conditions under which you live (as distinct from material comfort)
Broader: thing: a separate and self-contained entity | Unrelated: greengrocery: groceries sold by a greengrocer
Broader: thing: a separate and self-contained entity | Unrelated: blindman's bluff: a children's game in which a blindfolded player tries to catch and identify other players
Broader: thing: a separate and self-contained entity | Unrelated: alveolus: a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
Broader: thing: a separate and self-contained entity | Unrelated: dallisgrass: tall tufted perennial tropical American grass naturalized as pasture and forage grass in southern United States