Word: 水汽 (shuǐqì) 水汽 dictionary entry shuǐqì water vapor; steam; moisture Full dictionary entry for 水汽 Example sentences using 水汽 2 sentences, showing page 1 of 1. 云是天空中的水汽团。 Yún shì tiānkōng zhōng de shuǐqì tuán. A cloud is a mass of vapor in the sky. 当水被加热时，水汽蒸发。 Dāng shuǐ bèi jiārè shí, shuǐqì zhēngfā. Water evaporates when it is heated.