Определение piping bag в Английский Язык Английский Язык словарь
A cloth bag shaped like a cone with a small hole at the tapered end. It's used with a metal (or similar) nozzle for squeezing out various kinds of pastes in cooking, for example icing for decoration
A pastry bag that is used to pipe semi-solid foods by pressing them through a narrow opening at one end, for many purposes including cake decoration. It is filled through a wider opening at the opposite end, rolled or twisted closed, and then squeezed to extrude its contents