pie chart(n = noun.communication) - a circular chart divided into triangular areas proportional to the percentages of the whole;
is a kind of chart
apple pie, bar chart, blueberry pie, boston cream pie, calorie chart, chart, color chart, cottage pie, cow pie, custard pie, deep-dish pie, eye chart, flip chart, flow chart, kidney pie, lemon meringue pie, meat pie, mercator's chart, mince pie, mud pie, naval chart, navigational chart, organization chart, pecan pie, perigord pie, pie, pie crust, pie eyed, pie plant, pie shell, pilot chart, pizza pie, pork pie, pumpkin pie, red-veined pie plant, rhubarb pie, sea chart, sea pie, shepherd's pie, shoofly pie, snellen chart, squash pie, star chart, steak and kidney pie, tamale pie, umble pie, weather chart