Ratti

Ratti is a term with multiple meanings, primarily referring to a small rodent and a unit of weight. In zoology, the term "ratti" can refer to a group of Old World rodents belonging to the genus Rattus. These are commonly known as rats and are characterized by their long, nearly hairless tails and pointed snouts. Species within this genus are found worldwide and are known for their adaptability and often close association with human settlements.

Beyond its zoological context, "ratti" is also a unit of weight, particularly in India and some surrounding regions. One ratti is equivalent to approximately 120 milligrams or 1.85 grains. This unit is historically significant and has been used for centuries in trade and gemology, particularly for weighing precious stones and metals. The precise historical value of a ratti could vary slightly by region and time period. The use of the ratti as a unit of weight is less common in modern international trade, which generally relies on the metric system or imperial units.