A quantity in a physical system that remains constant as the system evolves.
गति का नियतांक
English Usage: The angular momentum is a constant of motion in a closed system.
Hindi Usage: बंद प्रणाली में कोणीय संवेग एक गति का नियतांक है।
gati ka niyatank, gati ka niyatak, gati ka nityank, gati ka niyataank, gati ka niyayatak
