ZR stands for various terms. Discover the full forms, meanings, and possible interpretations of ZR across different fields and industries.
Impedance, Zulu Time(GMT) or Zero, Coordinate, section modulus, viscosity, Standard deviation of the unit normal distribution, effort, A letter rating for tires to indicate that they are theoretically rated for speeds over 300 kph (186 mph), as in P245/50ZR16. There is no higher rating, but the one lower rating is Y OR Infra-red identification equipment
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