单词	quadrant
释义	quadrantquadrant /ˈkwɑdrənt/ noun [countable] Etymology ETYMOLOGYquadrant Origin: 1300-1400 Latin quadrans fourth part 1 math, geometry a quarter of a circle2an area that is one of four equal parts that a larger area is divided into:  the town’s southwest quadrant3science, physics an instrument for measuring angles, used when sailing or when looking at the stars4math, geometry one of four equal parts into which a plane is divided by two straight lines that cross each other at an angle of 90 degrees
随便看	incinerate incineration incinerator incipient incise incision incisive incisor incite incitement incivility incl. inclemency inclement inclination incline inclined inclose inclosure include included including inclusion inclusive incognito

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