掲示板 Forums - 米 having katakana as kun'yomi?

Apparently it's not a "true" kun'yomi, but a shorthand for meter in some contexts - 100米 for 100 metres

I'll do a bit more research to make sure this is accurate, and edit this as needed. At any rate, I don't think it's very important to know :D

Edit: Looks like 米 is the regular word (or character?) for meter in Chinese, just didn't really get widely adopted in Japanese.

Here's a source (I don't speak Chinese) : zh.hinative.com/questions/23620013

Ok, so during the Meiji era with the introduction of the metric system they adopted 米突 to represent meter. So in a way it "devolved" 米突 → 米 → メートル.

ah, thanks! so it's just in a small group of outliers that aren't frequent enough to have their own category. weird, i love it!