noun
theta
THAY-tuh/ˈθeɪtə/
The eighth letter of the Greek alphabet.
In the Greek alphabet, theta comes between eta and iota.
Etymology
Theta preserves the Greek letter name. The letter originally represented a t pronounced with a following puff of breath, before developing the th sound associated with it today.
In context
this is Theta in radian and this is the angle of this r r
More examples
- The lowercase theta, θ, has a line through its middle.
- She practices writing uppercase thetas, Θ, in her notebook.
- The diagram uses theta to label an angle.
Forms
theta · thetas