THETA

theta

(noun) the 8th letter of the Greek alphabet

Source: WordNet® 3.1


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


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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Word of the Day

6 May 2025

HEEDLESS

(adjective) marked by or paying little heed or attention; “We have always known that heedless self-interest was bad morals; we know now that it is bad economics”--Franklin D. Roosevelt; “heedless of danger”; “heedless of the child’s crying”


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Coffee Trivia

According to Guinness World Records, the largest coffee shop is the Al Masaa CafĂŠ, which has 1,050 seats. The coffee shop was inaugurated in Riyadh, Saudi Arabia, on 13 August 2014.

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