theta
theta
Definition
theta (t̸hāt′ə, t̸hēt′ə)
noun
the eighth letter of the Greek alphabet (Θ, ϑ, θ)
Etymology: Gr thēta: of Sem orig., akin to Heb tet
theta Finance Definition
Measures
the change in the premium of an option and compares it to a one-day change in
time-to-maturity. The longer an options time to expiration, the more valuable
an option is. High theta options are favored by option sellers because options
have a high rate of time decay.
theta
Usage Examples
Converse of object
- coordinate: The program produces a plot of completeness vs. resolution and a plot of the average radial completeness in polar coordinates theta and phi.
Modifies a noun
- rhythm: The cellular mechanisms by which the theta rhythm is generated are also becoming better understood.
- wave: A marked increase in the disturbance of alpha, delta and theta wave patterns in the brain.
- frequency: During the second clonic phase, the relative power spectrum of theta frequency was higher than that before stunning.
- power: Theta power decreased sharply 240 ms before movement ended at the rewarded end, but not at the unrewarded end of the track.
- activity: Respiratory related evoked potentials during the transition from alpha to theta EEG activity in Stage 1 NREM sleep.
- role: It also permits a move from formal to semantic analysis when considering argument structure, theta roles, aspectual class, voice, etc.
Noun used with modifier
- angle: Shown below is a detail of the flow where the curtain ( width W ) strikes the web at the dynamic contact angle theta.
- cos: The limb darkening agrees fairly well with the expected I ~ 2 + 3 cos theta.
- boundary: A thermodynamic analysis will include a study of the boundary layer theta and theta e together with variations of CAPE and CIN.
- layer: A thermodynamic analysis will include a study of the boundary layer theta and theta e together with variations of CAPE and CIN.
- sine: The short vertical line above the sine theta axis marks the position of the Ti K absorption edge.
Browse dictionary entries near theta
- Thessaly
- Thessaloniki
- Thessalonike
- Thessalonica
- Thessalonians
- Thessalonian
- Thessalian
- Thessalia
- Thess
- Thespis
- theta rhythm
- theta wave
- thetic
- thetical
- thetically
- Thetis
- theurgic
- theurgical
- theurgically
- theurgies
