Term: duality: (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: trouble: a source of difficulty
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: diffusion: (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: melancholy: a feeling of thoughtful sadness
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: vascularity: the property being vascular
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: muesli: mixture of untoasted dry cereals and fruits
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: glow lamp: a gas-discharge tube with a hot cathode; used in stroboscopes
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: forge: furnace consisting of a special hearth where metal is heated before shaping
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: light microscope: microscope consisting of an optical instrument that magnifies the image of an object
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: phenomenon: any state or process known through the senses rather than by intuition or reasoning
Broader: exchangeability: the quality of being capable of exchange or interchange | Unrelated: road map: a map showing roads (for automobile travel)