- (v.t.) Not liable or given, to change; permanent; regular; continuous; continually recurring; steadfast; faithful; not fickle.
- (n.) A quantity that does not change its value; -- used in countradistinction to variable.
- (v.t.) Consistent; logical.
- (v.t.) Remaining unchanged or invariable, as a quantity, force, law, etc.
- (v.t.) Firm; solid; fixed; immovable; -- opposed to fluid.
- (n.) That which is not subject to change; that which is invariable.
- (n.) A number whose value, when ascertained (as by observation) and substituted in a general mathematical formula expressing an astronomical law, completely determines that law and enables predictions to be made of its effect in particular cases.
- (n.) A number expressing some property or condition of a substance or of an instrument of precision; as, the dielectric constant of quartz; the collimation constant of a transit instrument.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). constant. Retrieved September 20, 2026, from http://smartdefine.org/constant/definitions/1990769 |
| Chicago | Webster's. 2011. "constant" http://smartdefine.org/constant/definitions/1990769 (accessed September 20, 2026). |
| Harvard | Webster's 2011, constant, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/constant/definitions/1990769>. |
| MLA | Webster's. "constant" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/constant/definitions/1990769> |