Very finely ground sugar to which cornstarch is added to prevent lumping, mostly used in icings and confections to produce a smooth texture.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "powdered sugar" in a sentence
"Purcell stared at the splay-toed pigeon prints in the powdered sugar scattered on the pavement."
"He bit into a powdered-sugar doughnut and powdered sugar sprayed everywhere."
"I went with a tender piece of steak, cut into strips and laid across a bowl of fresh greens, accompanied by a glass of light white wine I adhere to the somewhat illogical practice of not drinking red when driving, and followed by a Genovese dessert called scarpitantina, a sweet vanilla cake with cream between its layers, a touch of chocolate, and powdered sugar on top."