diameter

意味

• n. 直径
• n. 径

英語の定義

• n. the length of a straight line passing through the center of a circle and connecting two points on the circumference
• n. a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)

語形変化

複数形

diameters

例文

1. n. 直径

   The earth has a diameter of about twelve thousand eight hundred kilometers.

   地球の直径はおよそ1万2800キロメートルです。

2. n. 径

   Please measure the inner diameter of the pipe before installing it.

   パイプを取り付ける前に、その内径を測定してください。