軽-

(1)designed for ease of movement or to carry little weight; "light aircraft"; "a light truck"

(2)運動の容易さのために、あるいは軽く持ち運べるように設計される

(3)(physics, chemistry) not having atomic weight greater than average; "light water is ordinary water"

(4)平均よりも大きな原子量を持たない

(1)light water is ordinary water

(2)軽水は普通の水である