Mathematics

[math-uh-mat-iks] /ˌmæθ əˈmæt ɪks/

noun
1.
(used with a singular verb) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically.
2.
(used with a singular or plural verb) procedures, operations, or properties.
/ˌmæθəˈmætɪks; ˌmæθˈmæt-/
noun
1.
(functioning as sing) a group of related sciences, including algebra, geometry, and calculus, concerned with the study of number, quantity, shape, and space and their interrelationships by using a specialized notation
2.
(functioning as singular or pl) mathematical operations and processes involved in the solution of a problem or study of some scientific field
n.

1580s, plural of mathematic (see -ics). Originally denoting the mathematical sciences collectively, including geometry, astronomy, optics.
mathematics
(māth’ə-māt’ĭks)
The study of the measurement, relationships, and properties of quantities and sets, using numbers and symbols. Arithmetic, algebra, geometry, and calculus are branches of mathematics.

The study of numbers, equations, functions, and geometric shapes (see geometry) and their relationships. Some branches of mathematics are characterized by use of strict proofs based on axioms. Some of its major subdivisions are arithmetic, algebra, geometry, and calculus.