Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Log in Sign Up. Save Word. Definition of mathematics. Examples of mathematics in a Sentence Recent Examples on the Web Kernel methods, or kernel machines, rely on an area of mathematics with a long history. Moses returned to Cambridge, Mass.
First Known Use of mathematics , in the meaning defined at sense 1. Learn More About mathematics. Time Traveler for mathematics The first known use of mathematics was in See more words from the same year. Style: MLA. English Language Learners Definition of mathematics. Kids Definition of mathematics. Get Word of the Day daily email! Test Your Vocabulary. Can you spell these 10 commonly misspelled words? Love words?
Need even more definitions? Cone : A three-dimensional shape with only one vertex and a circular base. Conic Section : The section formed by the intersection of a plane and cone.
Constant : A value that does not change. Coordinate : The ordered pair that gives a precise location or position on a coordinate plane.
Congruent : Objects and figures that have the same size and shape. Congruent shapes can be turned into one another with a flip, rotation, or turn. Cosine : In a right triangle, cosine is a ratio that represents the length of a side adjacent to an acute angle to the length of the hypotenuse. Cylinder : A three-dimensional shape featuring two circle bases connected by a curved tube.
Decimal : A real number on the base ten standard numbering system. Denominator : The bottom number of a fraction. The denominator is the total number of equal parts into which the numerator is being divided. Diagonal : A line segment that connects two vertices in a polygon.
Diameter : A line that passes through the center of a circle and divides it in half. Difference : The difference is the answer to a subtraction problem, in which one number is taken away from another. Digit : Digits are the numerals found in all numbers. Dividend : A number being divided into equal parts inside the bracket in long division.
Divisor : A number that divides another number into equal parts outside of the bracket in long division. Edge : A line is where two faces meet in a three-dimensional structure. Ellipse : An ellipse looks like a slightly flattened circle and is also known as a plane curve. Planetary orbits take the form of ellipses. End Point : The "point" at which a line or curve ends. Equilateral : A term used to describe a shape whose sides are all of equal length. Equation : A statement that shows the equality of two expressions by joining them with an equals sign.
Even Number : A number that can be divided or is divisible by 2. Event : This term often refers to an outcome of probability; it may answers question about the probability of one scenario happening over another. Evaluate : This word means "to calculate the numerical value". Exponent : The number that denotes repeated multiplication of a term, shown as a superscript above that term. The exponent of 3 4 is 4. Expressions : Symbols that represent numbers or operations between numbers.
Face : The flat surfaces on a three-dimensional object. Factor : A number that divides into another number exactly. Factoring : The process of breaking numbers down into all of their factors. Factorial Notation : Often used in combinatorics, factorial notations requires that you multiply a number by every number smaller than it. The symbol used in factorial notation is!
When you see x! Factor Tree : A graphical representation showing the factors of a specific number. Fibonacci Sequence : A sequence beginning with a 0 and 1 whereby each number is the sum of the two numbers preceding it. Figure : Two-dimensional shapes. Finite : Not infinite; has an end. Flip : A reflection or mirror image of a two-dimensional shape. Formula : A rule that numerically describes the relationship between two or more variables. Fraction : A quantity that is not whole that contains a numerator and denominator.
Frequency : The number of times an event can happen in a given period of time; often used in probability calculations. Furlong : A unit of measurement representing the side length of one square acre. Geometry : The study of lines, angles, shapes, and their properties. Geometry studies physical shapes and the object dimensions. Graphing Calculator : A calculator with an advanced screen capable of showing and drawing graphs and other functions.
Graph Theory : A branch of mathematics focused on the properties of graphs. Greatest Common Factor : The largest number common to each set of factors that divides both numbers exactly. The greatest common factor of 10 and 20 is Hexagon : A six-sided and six-angled polygon.
Histogram : A graph that uses bars that equal ranges of values. Hyperbola : A type of conic section or symmetrical open curve. The hyperbola is the set of all points in a plane, the difference of whose distance from two fixed points in the plane is a positive constant. Hypotenuse : The longest side of a right-angled triangle, always opposite to the right angle itself.
Identity : An equation that is true for variables of any value. Integers : All whole numbers, positive or negative, including zero. Irrational : A number that cannot be represented as a decimal or fraction. A number like pi is irrational because it contains an infinite number of digits that keep repeating.
Many square roots are also irrational numbers. Isosceles : A polygon with two sides of equal length. Kilometer : A unit of measure equal to meters.
Knot : A closed three-dimensional circle that is embedded and cannot be untangled. Like Fractions : Fractions with the same denominator. Line : A straight infinite path joining an infinite number of points in both directions. Line Segment : A straight path that has two endpoints, a beginning and an end. Linear Equation : An equation that contains two variables and can be plotted on a graph as a straight line.
Line of Symmetry : A line that divides a figure into two equal shapes. Logic : Sound reasoning and the formal laws of reasoning. Logarithm : The power to which a base must be raised to produce a given number. Logarithm is the opposite of exponentiation. Mean : The mean is the same as the average. Add up a series of numbers and divide the sum by the total number of values to find the mean.
Median : The median is the "middle value" in a series of numbers ordered from least to greatest. When the total number of values in a list is odd, the median is the middle entry. When the total number of values in a list is even, the median is equal to the sum of the two middle numbers divided by two.
Midpoint : A point that is exactly halfway between two locations. Mixed Numbers : Mixed numbers refer to whole numbers combined with fractions or decimals. Mode : The mode in a list of numbers are the values that occur most frequently. Modular Arithmetic : A system of arithmetic for integers where numbers "wrap around" upon reaching a certain value of the modulus. Monomial : An algebraic expression made up of one term. Multiple : The multiple of a number is the product of that number and any other whole number.
Multiplication : Multiplication is the repeated addition of the same number denoted with the symbol x. Multiplicand : A quantity multiplied by another. A product is obtained by multiplying two or more multiplicands. Natural Numbers : Regular counting numbers.
Negative Number : A number less than zero denoted with the symbol -. Nth Root : The n th root of a number is how many times a number needs to be multiplied by itself to achieve the value specified.
Norm : The mean or average; an established pattern or form. Normal Distribution : Also known as Gaussian distribution, normal distribution refers to a probability distribution that is reflected across the mean or center of a bell curve. Numerator : The top number in a fraction. The numerator is divided into equal parts by the denominator.
Number Line : A line whose points correspond to numbers. Numeral : A written symbol denoting a number value. Obtuse Triangle : A triangle with at least one obtuse angle. Octagon : A polygon with eight sides. The odds of flipping a coin and having it land on heads are one in two.
Odd Number : A whole number that is not divisible by 2. Operation : Refers to addition, subtraction, multiplication, or division. Ordinal : Ordinal numbers give relative position in a set: first, second, third, etc. Order of Operations : A set of rules used to solve mathematical problems in the correct order. Outcome : Used in probability to refer to the result of an event.
Parallelogram : A quadrilateral with two sets of opposite sides that are parallel. Parabola : An open curve whose points are equidistant from a fixed point called the focus and a fixed straight line called the directrix.
Pentagon : A five-sided polygon. Regular pentagons have five equal sides and five equal angles. Percent : A ratio or fraction with the denominator Perimeter : The total distance around the outside of a polygon.
This distance is obtained by adding together the units of measure from each side. Perpendicular : Two lines or line segments intersecting to form a right angle. Plane : When a set of points join together to form a flat surface that extends in all directions, this is called a plane. Polynomial : The sum of two or more monomials. Polygon : Line segments joined together to form a closed figure. Rectangles, squares, and pentagons are just a few examples of polygons. Prime Numbers : Prime numbers are integers greater than 1 that are only divisible by themselves and 1.
Probability : The likelihood of an event happening. Product : The sum obtained through multiplication of two or more numbers. Proper Fraction : A fraction whose denominator is greater than its numerator.
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