theta : Idioms & Phrases
Theta function
(Math.) , one of a group of functions used in developing the properties of elliptic functions.
Webster 1913
theta rhythm
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noun the normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude
theta rhythm.
WordNet
theta wave
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noun the normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude
theta rhythm.
