atermis either a single number or variable, or the product of several numbers or variables separated from another term by a + or - sign in an overall expression. For example, in 3 + 4x+ 5yzw3, 4x, and 5yzware all terms. -wikipedia

But it sayseithera single number...or the product of the several numbers.

So does that mean that 4 is a term, x is a term, and y,z,and w are also terms? In that case how does it affect things like the associative property, does it not allow for an anarchic rewriting of the original expression?