What is the definition of graduate cylinder?

A graduated cylinder is a cylindrical container with a spout and a calibrated set of markings indicating volume. It is used to measure volumes of liquids and bulk powders, and is typically more accurate than other forms of measuring glassware, such as beakers. Graduated cylinders are available in various sizes, from small 10-millimeter or 5-milliliter cylinders up to large 2000-millimeter or 1-gallon cylinders. They are commonly used in laboratories, schools, and industrial settings for tasks such as measuring ingredients for experiments or preparing solutions. Graduated cylinders are typically made of glass, but some models may also be made of plastic.