What is the name for kanji that only have ON reading, but no KUN reading?


I have learnt that there is a name for kanji that were invented in Japan -
kokuji. Most of them only have KUN reading and do not have ON reading.

I know there are kanji that only have ON reading(s) and do not have KUN
reading. However, I found myself struggling to find in the Internet the name
for such kanji. 展 is probably a good example of such kanji, isn't it?

The reason I'm asking is that I hope it might make life a bit easier if I
learnt kanji with only one reading separately from kanji with both KUN and ON
readings.

Thanks a lot.




I believe that the term you are looking for is 外字 However this term is generic
in which it refers to any written characters that lack a Japanese reading




I believe that the term you are looking for is 外字 However this term is generic
in which it refers to any written characters that lack a Japanese reading

