theta

English dictionary entry

Meanings

noun

The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.
The measure of an angle.
Pitch angle; the angle between an aircraft's longitudinal axis and the horizontal plane.
The sensitivity of the value of a derivative with respect to time; the "time decay".
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).
The voiceless dental fricative represented by θ.

noun

/ˈθiːtə/ /ˈθeɪtə/ [ˈθeɪɾə] /ˈθitə/ en-us-theta.ogg /ˈθæɪtə/ [ˈθæɪɾə] /ˈθeɪ.ta/ [fei̯˥ tʰaː˩] LL-Q1860 (eng)-Flame, not lame-Theta.wav

theta thetas

Borrowed from Ancient Greek θῆτα (thêta).

deck angle

Ramanujan theta function theta-delta theta function theta graph theta join theta meditation thetan theta pinch theta rhythm theta role theta wave

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