THETA

theta

(noun) the 8th letter of the Greek alphabet

Source: WordNet® 3.1

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Etymology

Noun

theta (plural thetas)

The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.

(mathematics) The measure of an angle.

(finance) The sensitivity of the value of a derivative with respect to time; the "time decay".

(biology) Designating a level of brain activity as measured by electroencephalography having a frequency of between four and seven cycles per second (associated with drowsiness in adults).

(phonology) The voiceless dental fricative represented by θ.

Hypernyms

• (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)

Noun

Theta (plural Thetas)

(US, colloquial) A member of the Kappa Alpha Theta sorority.

Source: Wiktionary

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The"ta, n. Etym: [L., fr. Gr. qh a, the Greek letter th,

Definition: A letter of the Greek alphabet corresponding to th in English;

– sometimes called the unlucky letter, from being used by the judges on their ballots in passing condemnation on a prisoner, it being the first letter of the Greek qa`natos, death. Theta function (Math.), one of a group of functions used in developing the properties of elliptic functions.

Source: Webster’s Unabridged Dictionary 1913 Edition

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