Kappa

kappa - Wiktionary, the free dictionary

caput n (genitive capitis); third declension

1. (of human and animals) The head.
   1. (poetic) The head as the seat of the understanding.

Kappa - Wikipedia

Psychology and psychiatry

• In psychology and psychiatry, kappa represents a measure of diagnostic reliability.

c1400–

kappa, n.

The tenth letter of the Greek alphabet, Κ, κ.

1945–

kappa, n.

Biology. An agent in some strains of Paramecium aurelia that confers on cells possessing it the property of producing a substance toxic to Paramecium…

1799–