a quantity that can assume any of a set of values
how much there is or how many there are of something that you can quantify
an adequate or large amount
liable to or capable of change
something that is likely to vary; something that is subject to variation
a quantity that can assume any of a set of values
(used of a device) designed so that a property (as e.g. light) can be varied
a star that varies noticeably in brightness
the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable
