\begin{definition}[Definition:Multiplication/Multiplier]
Let $a \times b$ denote the operation of multiplication on two objects.
The object $a$ is known as the '''multiplier of $b$'''.
That is, it is the object which is to multiply the multiplicand.
Note that the nature of $a$ and $b$ has deliberately been left unspecified.
They could be, for example, numbers, matrices or more complex expressions constructed from such elements.
\end{definition}