multigrade
adjective
mul·ti·grade
ˌməl-tē-ˈgrād 
-ˌtī-
1
: 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.
Kevin M. G. Maher et al.Cite this Entry
“Multigrade.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/multigrade. Accessed 5 Jul. 2026.
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