: including or involving students from more than one grade level
a multigrade classroom
2
of motor oil: having a viscosity range that allows use over a wide temperature range
Due to the need for an oil that embodies both good lubrication at high temperatures and easy cranking in cold weather, multigrade oils have been developed. Basically, a multigrade oil is thinner at low temperatures and thicker at high temperatures. Kevin M. G. Maher et al.