noun, noun or participle which takes 'suru', transitive verb
on reading; Chinese-derived reading
Refers to the reading of a kanji based on historical Chinese pronunciation. Often contrasted with 訓読み (kun reading). Used both as a noun and as a suru verb (e.g., 音読みする).
See also: 訓読み
この漢字の音読みは「カ」です。
The on reading of this kanji is 'ka'.
「山」
When you read 山 with its on reading, it becomes 'san'.