THETA — Definition of THETA
noun
1
The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.
2
The measure of an angle.
3
The sensitivity of the value of a derivative with respect to time; the "time decay".
4
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).
📚 Source: en.wiktionary.org/wiki/theta
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