Radius
01
半径, 半直径
the length of a straight line drawn from the center of a circle to any point on its outer boundary
例
The radius of a circle is half the length of its diameter, extending from the center to any point on the circumference.
円の半径は直径の長さの半分で、中心から円周上の任意の点まで伸びています。
A compass is a tool used to draw circles, with the radius adjusted to the desired measurement.
コンパスは円を描くための道具で、半径を希望の測定値に調整します。
02
a supporting radial member of a wheel connecting the hub to the rim
例
The bicycle 's radius snapped during the ride.
Mechanics replaced a damaged radius on the wheel.
03
a circular region defined by the distance from its center, indicated by the radius
例
The park has a radius of 100 meters from the central fountain.
Emergency services cover a radius of 10 kilometers.
04
the outer and slightly shorter of the two bones of the human forearm
例
He fractured his radius during the fall.
X-rays showed a clean break of the radius.
語彙ツリー
radial
radial
radius
