k

Multiple Entries:
  k    K    kelvin    potassium  

Concise Oxford English Dictionary © 2008 Oxford University Press:
k/keɪ/

▶abbreviation kilo-. ▶symbol

• 1 a constant in a formula or equation.

• 2 Chemistry Boltzmann's constant.

Concise Oxford English Dictionary © 2008 Oxford University Press:
K1 (also k)

▶noun (pl. Ks or K's)

• 1 the eleventh letter of the alphabet.

• 2 denoting the next after J in a set of items, categories, etc.

Concise Oxford English Dictionary © 2008 Oxford University Press:
K2

▶abbreviation

• 1 Cambodia (international vehicle registration). [from Kampuchea.]

• 2 kelvin(s).

• 3 ketamine.

• 4 Computing kilobyte(s).

• 5 kilometre(s).

• 6 king (used in describing play in card games and chess).

• 7 Köchel (catalogue of Mozart's works).

• 8 informal thousand. [from kilo-.]

▶symbol

■ the chemical element potassium.

■[from mod. L. kalium.]

Concise Oxford English Dictionary © 2008 Oxford University Press:
kelvin /ˈkelvɪn/ (abbrev.: K)

▶noun the SI base unit of thermodynamic temperature, equal in magnitude to the degree Celsius.

– origin C19: named after the British physicist William T. Kelvin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
potassium /pəˈtasɪəm/

▶noun the chemical element of atomic number 19, a soft silvery-white reactive metal of the alkali-metal group. (Symbol: K)

– derivatives
potassic adjective.

– origin C19: from potash + -ium.