日にっ光こう角かく化か症しょうにっこうかくかしょうMeanings1nounactinic keratosis; solar keratosismedicine›Medical term for a rough, scaly patch on the skin caused by years of sun exposure; also called senile keratosis.日にっ光こう角かく化か症しょうは、長なが年ねんの
