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外径 (がいけい, gaikei) Japanese meaning: outer diameter | Kotomora

外がい径けい

が

い

け

い

Meanings

1

outer diameter; outside diameter

Technical term used in engineering, manufacturing, and specifications to describe the external diameter of a cylindrical or spherical object.

このパイプの外がい径けいは50ミリです。
The outer diameter of this pipe is 50 mm.

Kanji

外outside
径diameter, path, method

Related words

内ない径けい
内径 means 'inner diameter', the internal measurement of a hollow object, while 外径 refers to the external measurement.
直ちょっ径けい
直径 is the general term for 'diameter', applicable to both inner and outer measurements, whereas 外径 specifically denotes the outer diameter.

Etymology

Compound of 外 (outside) and 径 (diameter), following standard Sino-Japanese word formation.

外がい

径けい

を

測そく

定てい

し

て

から

部ぶ

品ひん

を

注ちゅう

文もん

し

て

ください

。

Please measure the outer diameter before ordering the part.