**Math:** the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically.

Also, mathematical procedures, operations, or properties.

## Dictionary : Letter D

Data

Data Analysis

Date

Day

Debit

Debt

Deca-

Decade

Decagon

Decahedron

Deci-

Decimal

Decimal Fraction

Decimal Number

Decimal Number System

Decimal Point

Decompose

Decrease

Deduct

Deductible

Definite Integral

Degree (accuracy)

Degree (algebra)

Degree (angles)

Degree (temperature)

Denominator

Density

Dependent Event

Dependent Variable

Deposit

Depth

Derivative

Descending Order

Determinant

Deviation

Diagonal

Diagram

Diameter

Diamond

Dice

Die

Difference

Difference of Squares

Differential Equation

Differentiation

Digit

Digital

Digital Clock or Watch

Dilation

Dimension

Dimensions

Directed Number

Direction

Directrix

Discount

Discrete Data

Discriminant

Disk

Displacement (distance)

Displacement (fluid)

Disposable income

Distance

Distributive Law

Diverge

Diversification

Divide

Divide evenly

Dividend

Dividends

Divisible

Division

Divisor

Divisor (of an integer)

Dodecagon

Dodecahedron

Dollar

Domain of a Function

Dot Plot

Dot Product

Double

Dozen

Duodecimal