Condensation/ˌkɑːndenˈseɪʃn/ Definition 1 of 4Pro Tip 1/3Weather Related Often used in meteorology, to describe moisture on surfaces like grass. You'll notice early morning condensation on the lawn. Pro Tip 2/3Everyday Observation Common in daily life, like water droplets on cold drinks. The glass of iced tea had condensation on its surface. Pro Tip 3/3Visibility Hindrance Can be a nuisance by obscuring vision, like on eyeglasses or windows. He wiped condensation off his glasses to see better.