Chinese word

直径

Pronunciation

Pinyinzhí jìng

Meaning

  • noundiameter

Example

这个圆的直径是多少？zhè ge yuán de zhí jìng shì duō shǎo

What is the diameter of this circle?

Illustration for 直径 (diameter)

More examples

轮胎的直径会影响速度表的读数。lún tāi de zhí jìng huì yíng xiǎng sù dù biǎo de dú shù

The tire's diameter affects the speedometer reading.

Core concept

A straight span crosses a round shape from one edge to the opposite edge through its center.

Common phrases

  • 该圆的直径gāi yuán de zhí jìng

    diameter of the circle

  • 直径是zhí jìng shì

    diameter is

  • 直径大小zhí jìng dà xiǎo

    diameter size

Similar words

半径bàn jìng: The length from the center of a circle to a point on its edge.
周长zhōu cháng: The distance around the outside of a shape.
面积miàn jī: The amount of flat space covered by a shape.
长度cháng dù: The measurement of how long a line or object is.

Definition in Chinese

以圆心为中点、连接圆上两点的线段的长度。yǐ yuán xīn wèi zhōng diǎn lián jiē yuán shàng liáng diǎn de xiàn duàn de cháng dù

Word origin

直径 (zhíjìng, "diameter") combines 直 (zhí, "straight") with 径 (jìng, "path or route"), presenting the measurement as a straight passage across a circle.

Usage tips

  • In spoken measurements, a number and unit usually follow the noun directly, and 约 (yuē, "approximately") marks an estimate before the number.

Related words

  • 外直径wài zhí jìngouter diameternoun
  • 内直径nèi zhí jìnginner diameternoun
  • 平均直径píng jūn zhí jìngaverage diameternoun

Word lists with this word