I've heard neither "cross-handedness" nor 'cross-dominance'
Discussion
Really! ? thank you for teaching me!
I use my left hand to hold pens and chopsticks, and my right hand for things like knives, scissors, and ball games. How do you say this in English?
It's not a common term but apparently cross-dominance or mixed-handedness is what it's called.
But I am not native English speaker, so maybe people from UK or US may know more
I feel that the Japanese word "cross-handedness" is also not a very widely used word. I can understand why words related to cross-handedness are not often used in English.
The Wikipedia article is short, so it may not be a common term. Now that I think about it, I remember that I started hearing it in Japanese a few years ago. Sorry for jumping to conclusions…