水温
shuǐ wēn · HSK 7
water temperature
💧🌡️ 水 (water) + 温 (warmth/temperature) = water temperature
水 means water; 温 means warm or temperature (as in 温度). Stacked together they name the warmth-level of water. The shuǐ in 水 is the same water you hear in 水果 (fruit) and 喝水 (drink water).
水 — pictograph of flowing water
水 is a pictograph depicting a stream of flowing water, with the central line representing the main current and the side strokes showing splashing droplets or ripples. In oracle bone script it was drawn even more clearly as a wavy vertical line with branches. It retains its original meaning of 'water' and also serves as a radical, often appearing in the compressed form 氵.