Able to be separated.
Able to be brought to a form where all occurrences of the dependent and the independent variable are on opposite sides of the equal sign.
Having a countable dense subset.
Separable, capable of being treated separately.
A number of different; various.
Each particular taken singly; an item; a detail; an individual.
By itself; severally.
Consisting of a number more than two but not very many.