Augend
The first of several Addends, or ``the one to which the others are added,'' is sometimes called theaugend. Therefore, while 
, 
, and 
are Addends in 
, is the augend.
- Diophantine Equation--9th Powers
- Diophantine Equation--Cubic
- Diophantine Equation--Linear
- Diophantine Equation nth Powers
- Diophantine Equation--Quadratic
- Diophantine Equation--Quartic
- Diophantine Quadruple
- Diophantine Set
- Diophantus Property
- Diophantus' Riddle
- Dipyramid
- Dirac Delta Function
- Dirac Matrices
- Dirac's Theorem
- Directed Angle
- Directed Graph
- Directional Derivative
- Direction Cosine
- Directly Similar
- Director Curve
- Direct Product (Group)
- Direct Product (Matrix)
- Direct Product (Set)
- Direct Product (Tensor)
- Directrix (Conic Section)