WordReference Random House Unabridged Dictionary of American English © 2025
lin′ear combina′tion, [Math.](of mathematical quantities)
            - Mathematicsa sum of products of each quantity times a constant:The expressionaX + bY + cZ is a linear combination of X, Y, and Z, where a, b, and c are constants.
- 1955–60
'linear combination' also found in these entries (note: many are not synonyms or translations):