KAPPA
kappa
(noun) the 10th letter of the Greek alphabet
Source: WordNet® 3.1
Etymology 1
Noun
kappa (plural kappas)
The tenth letter of the Greek alphabet.
(finance) A measurement of the sensitivity of the value of an option to changes in the implied volatility of the price of the underlying asset.
Synonyms
• (measure of derivative price sensitivity): tau, vega
Hypernyms
• (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)
Etymology 2
Noun
kappa (plural kappas)
(mythology) A tortoise-like creature in the Japanese mythology.
Noun
Kappa (plural Kappas)
(Twitch-speak) An emote, often used as a postscript, to indicate that the preceding statement is sarcastic or false.
Interjection
Kappa
(internet) Used to indicate sarcasm in imitation of Kappa as used on Twitch.tv
Source: Wiktionary