Nurdle

a plastic pellet (see pellet entry 1 sense 1a) that is usually less than 0.2 inch (0.5 centimeter) in diameter or length, that is the raw material from which plastic products are manufactured, and that is a common pollutant of global waters and beaches — not used technically

Sanskrit equivalent

प्लास्टिककणिका / सूक्ष्मप्लास्टिकबीजिका