## List of Math Words That Start With D

Below are common math words that start with d.

- Derivative
- Differentiation
- Determinant
- Diagonal
- Diameter
- Dimension
- Distribution
- Dividend
- Divisor
- Dot product
- Dual space
- Deductive reasoning
- Decagon
- Decimal
- Degree
- Descartes’ rule of signs
- Deviation
- Diameter
- Differential equation
- Discrete
- Discriminant
- Dodecahedron
- Domain
- Dot plot
- Dot notation
- Dual function
- Dyad
- Dynamic programming
- Data set
- Dedekind cut
- Definite integral
- Dependent variable
- Descriptive statistics
- Deterministic
- Diophantine equation
- Dirac delta function
- Dirichlet series
- Divergence
- Divisibility
- Dodecagon
- Dominant eigenvalue
- Dyadic fraction
- Dyson series
- Disjoint sets
- Disjunction
- Distribution function
- Dihedral group
- Distance formula
- Divisibility rule
- Dual graph

## Math Terms That Start With D (Divided by Subjects)

### Geometry Terms That Start With D

**Diameter:**A line segment that passes through the center of a circle, connecting two points on the circumference.**Dodecagon:**A polygon with twelve sides and twelve angles.**Diagonal:**A line segment that connects non-adjacent vertices in a polygon.**Dilations:**Transformations that change the size of a figure.**Dodecahedron:**A three-dimensional shape with twelve faces, each a regular pentagon.**Degrees:**A unit of measurement for angles and temperature.**Decagon:**A polygon with ten sides and ten angles.**Dihedral Angle:**The angle between two intersecting planes.**Distance:**The length between two points in space.**Dependent Events:**The occurrence of one event affecting the probability of another.

### Algebra Terms That Start With D

**Domain:**Set of input values in a function.**Distributive Property:**Multiply term across parentheses in expression.**Dependent Variable:**Output value determined by independent variable.**Diagonal Matrix:**Square matrix with non-zero entries only on diagonal.**Difference Quotient:**Measure of average rate of change.**Diameter:**Line segment across center of a circle.**Discrete Data:**Data with distinct, separate values.**Dividend:**Number to be divided in a division operation.**Domain Restriction:**Limitation on input values for a function.**Degree:**Highest exponent in a polynomial term.

**Explore Other Math Words:**