multigrade

multigrade

(ˈmʌltɪˌɡreɪd) n1. (Photography) a brand of black and white photographic paper coated with a mixture of emulsions which are sensitive to the colour of the printing light used and which produce different contrast grades as a result2. (Mathematics) a Diophantine mathematical equation or its solutionadj3. (Photography) designating equipment designed to be used with multigrade photographic paper4. (Mathematics) designating a Diophantine mathematical equation5. (Automotive Engineering) (of an engine oil) treated with polymer additives in order to improve performance by limiting changes in viscosity at different temperatures6. (Education) dialect US of or relating to a class which includes students from more than one grade