A measuring cylinder is a laboratory tool used to accurately measure the volume of liquids. It consists of a narrow cylindrical shape with a uniform diameter, a flat bottom, and a spout for pouring. The cylinder is typically made of glass or plastic and comes in different sizes, ranging from 10 milliliters to several liters.

The cylinder is marked with graduations or calibration lines, which allow the user to read the volume of liquid with high accuracy. The graduations may be in milliliters (ml), cubic centimeters (cc), or liters (L), depending on the size of the cylinder.

To use a measuring cylinder, the liquid is poured into the cylinder, and the user reads the volume at the meniscus, which is the curved surface of the liquid. The volume is read at the bottom of the meniscus, which is at the same level as the graduation line.

Measuring cylinders are used in various applications, including in chemistry experiments, in medical laboratories, in cooking and baking, and in the pharmaceutical industry. They are essential tools for accurate measurement of liquid volumes and are relied upon for their precision and ease of use.