CONSTANT

Firm; solid; fixed; immovable; -- opposed to fluid. [Obs.] If . . . you mix them, you may turn these two fluid liquors into a constant body. Boyle.

Not liable, or given, to change; permanent; regular; continuous; continually recurring; steadfast; faithful; not fickle. Both loving one fair maid, they yet remained constant friends. Sir P. Sidney. I am constant to my purposes. Shak. His gifts, his constant ourtship, nothing gained. Dryden. Onward the constant current sweeps. Longfellow.

Remaining unchanged or invariable, as a quantity, forc, law, etc.

Consistent; logical. [Obs.] Shak.

That which is not subject to change; that which is invariable.

A quantity that does not change its value; -- used in countradistinction variable. Absolute costant (Math.), one whose value is absolutely the same under all cirumstanes, as the number 10, or any numeral. -- Arbitrary constant, an undetermined constant in a differential equation having the same value during all changes in the values of the variables.