As an abbreviation: In electricity, of kathode (cathode, which see) and kathodic (cathodic).
In mathematics: The Lemoine point in geometry.
In mineralogy, the middle letter of the general symbol hkl, given to the face of a crystal in the system of Miller. See symbol, 7.
In phys.: The symbol usually employed for moment of inertia. The letter K is used by some writers as a symbol of electrostatic capacity, but C is now almost universally adopted for this quantity.
A symbol usually employed to designate magnetic susceptibility.
A symbol for absolute temperature.
The eleventh letter and eighth consonant of the English alphabet; the eleventh character also of the Phenician alphabet, from which it has come to us through the Latin and Greek.
In chem., the symbol for potassium (NL. kalium).
As an abbreviation: [lowercase] In meteorology, of cumulus (c being used for cirrus).
Of king, knight, etc.: as, K. G., Knight of the Garter.
Of
In math., k is generally a constant coefficient. It is also a unit vector perpendicular to i and j.
As a numeral in medieval use, 250.