Definition of constant

• v. t. - Firm; solid; fixed; immovable; -- opposed to fluid.
• v. t. - Not liable, or given, to change; permanent; regular; continuous; continually recurring; steadfast; faithful; not fickle.
• v. t. - Remaining unchanged or invariable, as a quantity, force, law, etc.
• v. t. - Consistent; logical.
• n. - That which is not subject to change; that which is invariable.
• n. - A quantity that does not change its value; -- used in countradistinction to variable.