Term: respiratory system: the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: hypobetalipoproteinemia: a hereditary disorder characterized by low levels of beta-lipoproteins and lipids and cholesterol
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: anagyris: very small genus of shrubs of southern Europe having backward curving seed pods
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: medusa: (Greek mythology) a woman transformed into a Gorgon by Athena; she was slain by Perseus
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: pepperoni pizza: tomato and cheese pizza with pepperoni
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: power walking: a form of cardiopulmonary exercise consisting of rapid walking accompanied by vigorous swinging of the arms
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: polyester fiber: a quick-drying resilient synthetic fiber consisting primarily of polyester
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: sericulture: raising silkworms in order to obtain raw silk
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: piggery: a farm where pigs are raised or kept
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: caveat emptor: a commercial principle that without a warranty the buyer takes upon himself the risk of quality
Broader: system: a group of physiologically or anatomically related organs or parts | Unrelated: air alert: the warning signal that begins a period of preparation for an enemy air attack