radius

noun

/ˈreɪdiəs/

(plural radii

/ˈreɪdiaɪ/

)

enlarge image
a straight line between the centre of a circle and any point on its outer edge; the length of this line半径（长度）
compare diameterTopics Maths and measurementc1
a round area that covers the distance mentioned from a central point半径范围；周围
- within a… radius They deliver to within a 5-mile radius of the store.他们给店铺方圆 5 英里内送货上门。
- Doctors wish to examine everyone living within a 10-mile radius of the factory.医生希望对工厂方圆10英里内的每个人进行检查。
enlarge image
(anatomy解剖学) the shorter bone of the two bones in the lower part of the arm between the elbow and the wrist, on the same side as the thumb桡骨
see also ulnaTopics Bodyc2

词源late 16th cent. (in sense (3)): from Latin, literally ‘staff, spoke, ray’.

词汇	radius
释义	radius noun /ˈreɪdiəs/ /ˈreɪdiəs/ (plural radii /ˈreɪdiaɪ/ /ˈreɪdiaɪ/ ) enlarge image a straight line between the centre of a circle and any point on its outer edge; the length of this line半径（长度） compare diameterTopics Maths and measurementc1 a round area that covers the distance mentioned from a central point半径范围；周围 within a… radius They deliver to within a 5-mile radius of the store.他们给店铺方圆 5 英里内送货上门。 Doctors wish to examine everyone living within a 10-mile radius of the factory.医生希望对工厂方圆10英里内的每个人进行检查。 enlarge image (anatomy解剖学) the shorter bone of the two bones in the lower part of the arm between the elbow and the wrist, on the same side as the thumb桡骨 see also ulnaTopics Bodyc2 词源late 16th cent. (in sense (3)): from Latin, literally ‘staff, spoke, ray’.
随便看	circulators circulatory circum. circumcise circumcised circumciser circumcisers circumcises circumcising circumcision circumcisions circumference circumferences circumferential circumferentially circumflex circumflex accent circumflexed circumflexes circumflexing circumflexion circumlocution circumlocutional circumlocutionary circumlocutionist