mathmatics - n.pl.
1 (also treated as sing.) the abstract science of number, quantity, and space studied in its own
right (pure mathematics), or as applied to other disciplines such as physics, engineering, etc. (applied mathematics).
2 (as pl.) the
use of mathematics in calculation etc.
mathematician n. [prob. f. F math÷matiques pl. f. L mathematica f. Gk mathematika: see MATHEMATICAL]