| 释义 |
theta
the·ta T0161600 (thā′tə, thē′-)n. The eighth letter of the Greek alphabet. See Table at alphabet.
[Greek thēta, of Phoenician origin; akin to Hebrew ṭêt, teth.]theta (ˈθiːtə) n1. (Letters of the Alphabet (Foreign)) the eighth letter of the Greek alphabet (Θ, θ), a consonant, transliterated as th2. (Letters of the Alphabet (Foreign)) the lower-case form of this letter used in phonetic transcription to represent the voiceless dental fricative th as in thick, both. Compare edh[C17: from Greek, of Semitic origin; compare Hebrew tēth]the•ta (ˈθeɪ tə, ˈθi-)
n., pl. -tas. the eighth letter of the Greek alphabet (Θ, θ). [1595–1605; < Greek thêta < Semitic. See teth] Thesaurus| Noun | 1. |  theta - the 8th letter of the Greek alphabetGreek alphabet - the alphabet used by ancient Greeksalphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters" |
Translationstheta
theta (θ) The eighth letter of the Greek alphabet, used in stellar nomenclature usually to designate the eighth brightest star in a constellation or sometimes to indicate a star's position in a group.theta
θ , ΘThe eighth letter in the Greek alphabet, theta; symbol for angle.
the·ta (θ, Θ), (thā'ta), 1. The 8th letter in the Greek alphabet, θ. 2. The eighth in a series; denotes the position of a substituent located on the eighth atom from the carboxyl or other functional group. 3. Symbol for angle. the·ta (θ, Θ) (thā'tă) 1. The eighth letter in the Greek alphabet. 2. Angle. 3. The eighth in a series; denotes the position of a substituent located on the eighth atom from the carboxyl or other functional group. Theta
ThetaThe ratio of the change in an option price to the decrease in time to expiration. Also called time decay.ThetaThe decline in value of an option contract over the passage of time. Assuming all other factors (such as the price of the underlying security) remain constant, the price of the option will decline as the expiration date nears because it becomes less likely that the option will be in-the-money or out-of-the-money at expiration. Theta is an attempt to quantify this fact. It is important to note that because other factors do not always remain constant, the price of the option does not always decline according to the theta.theta The sensitivity of an option's market value relative to a change in the time to expiration. Theta is a measure of time decay and tends to grow larger as an option approaches expiration.THETA
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| THETA➣Tourism, Hospitality and Sport Education and Training Authority (South Africa) | | THETA➣Toronto Health Economics and Technology Assessment (Toronto, Ontario, Canada) | | THETA➣Thermal Issues in Emerging Technologies Theory and Application (International Conference) | | THETA➣The Talent Alliance | | THETA➣tunneling hot-electron transfer amplifier |
theta
Related to theta: Theta wavesWords related to thetanoun the 8th letter of the Greek alphabetRelated Words- Greek alphabet
- alphabetic character
- letter of the alphabet
- letter
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