sketchpad
From Longman Dictionary of Contemporary EnglishRelated topics: Visualsketchpadsketch‧pad /ˈsketʃpæd/ (also sketchbook /ˈsketʃbʊk/) noun [countable] AVa number of sheets of paper fastened together and used for drawingExamples from the Corpussketchpad• Instead of ironing, as she'd planned, she'd spend the evening with her sketchpad.• While waiting for passengers, it's out with his sketchpad and on with his favourite pastime - painting.• But time is running out and I am suddenly discovering lots of subjects for my sketchpad.• The design came from the sketchpad of a 12 year old Milton Keynes schoolboy.