Online Google Dictionary

alpha 中文解釋 wordnet sense Collocation Usage Collins Definition
Symbol
/ˈalfə/,
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alphas, plural;
  1. A plane angle

  2. Angular acceleration

  3. Right ascension

Noun
  1. The first letter of the Greek alphabet (Α, α), transliterated as “a.”

  2. Denoting the first of a series of items or categories, e.g., forms of a chemical compound
    • - alpha interferon
    • - the α and β chains of hemoglobin
  3. Denoting the dominant animal or person in a particular group
    • - Turner soon proved to be the alpha male
  4. The first (typically the brightest) star in a constellation
    • - Alpha Centauri
  5. Relating to alpha decay or alpha particles
    • - an alpha emitter
  6. A code word representing the letter A, used in radio communication

  1. the 1st letter of the Greek alphabet
  2. first in order of importance; "the alpha male in the group of chimpanzees"; "the alpha star in a constellation is the brightest or main star"
  3. early testing stage of a software or hardware product; "alpha version"
  4. the beginning of a series or sequence; "the Alpha and Omega, the first and the last, the beginning and the end"--Revelations
  5. Alpha is the second full-length studio album from visual kei rock band Alice Nine. It was released on the November 28th, 2007. Alpha includes 12 tracks, 4 of which were previously released as singles. ...
  6. Alpha is a trip hop/electronica group, comprising founding member Corin Dingley, vocalist and lyricist Wendy Stubbs and Hannah Collins; other founding member, Andy Jenks, left the group before the release of their 2007 LP "The Sky Is Mine". ...
  7. Alpha Centauri (α Centauri, α Cen; also known as Rigil Kentaurus, Rigil Kent, or Toliman) is the brightest star in the southern constellation of Centaurus. To the unaided eye it appears as a single star, whose total visual magnitude would identify it as the third brightest star in the night sky. ...
  8. Alpha is a fictional character in the DC Comics universe. He is a martial artist created by writer Kelley Puckett and artist Damion Scott as a villain to Batgirl, and he first appeared in Batgirl #35 (2003).
  9. Alpha is the name of a fictional computer in Mike Walker's radio drama of the same name.
  10. These are characters from the Dollhouse science fiction television series.
  11. (Alphas) alphabet letters to use on your pages as titles or elements – see example
  12. Term used in sealed enclosure designs to mean the ratio of Vas to Vb, where Vb is the volume of the box you will build.
  13. The alpha value in an image denotes opacity, used for blending and antialiasing.
  14. An Alpha is a RISC processor invented by Digital and currently produced by Digital/Compaq and Samsung. A few different OSes run on Alpha based machines including Digital UNIX, Windows NT, Linux, NetBSD, and AmigaOS. ...
  15. A value representing a pixel's degree of transparency. The more transparent a pixel, the less it hides the background against which the image is presented. ...
  16. A weak form of ionizing radiation detectable on some models of Geiger counters, typically those that incorporate a thin mica "window" at one end of the Geiger -Mueller tube.  Alpha radiation consists of positively charged particles emitted from the nucleus of an atom in the process of decay. ...
  17. A statistical measurement used to determine the percentage of the change in a stock's price due to factors internal to the company, rather than to the stock market's fluctuations.
  18. Alphanumeric; generally refers to the ANSI/ISO ALPHA Data Format, which is a 7-bit 64- character set
  19. The alpha coefficient measures the portion of an investment's return arising from specific (non-market) risk. It can be a positive or a negative number. ...
  20. B8 cymbals (CuSn8); semi-professional cymbals. Introduced in 1991, and redesigned in 2006. There are actually many professionals who use the Alphas and they are currently Paiste's most popular model of cymbals.
  21. A measure of selection risk (also known as residual risk) of a mutual fund in relation to the market. A positive alpha is the extra return awarded to the investor for taking a risk, instead of accepting the market return. For example, an alpha of 0. ...
  22. temperature coefficient of the change in electrical resistance of a material, indicating the basic change in electrical resistance in a material for each ºC in temperature
  23. military phonetic for the letter 'A'
  24. A measure of performance on a risk-adjusted basis. Alpha takes the volatility (price risk) of a mutual fund and compares its risk-adjusted performance to a benchmark index. The excess return of the fund relative to the return of the benchmark index is a fund’s alpha.
  25. Portion of the return on an asset (or group of assets) that depends neither on its specific characteristics nor on market fluctuations. Alpha therefore measures the expected return on an asset (or group of assets) when the market (or benchmark) is totally flat. ...