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Meaning of INDEX

Pronunciation:  'indeks

WordNet Dictionary
  1. [n]  the finger next to the thumb
  2. [n]  an alphabetical listing of names and topics along with page numbers where they are discussed
  3. [n]  a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
  4. [n]  a mathematical notation indicating the number of times a quantity is multiplied by itself
  5. [n]  a numerical scale used to compare variables with one another or with some reference number
  6. [v]  adjust through indexation; "The government indexes wages and prices"
  7. [v]  provide with an index, as of a book
  8. [v]  list in an index

INDEX is a 5 letter word that starts with I.


 Synonyms: exponent, forefinger, index finger, index number, indicant, indicator, power
 See Also: back matter, business index, concordance, cross-index, degree, determine, end matter, fact, finger, furnish, graduated table, influence, key word, leading indicator, list, list, listing, log, logarithm, margin of error, margin of safety, mathematical notation, mold, ordered series, price index, price level, provide, regulate, render, safety margin, scale, scale of measurement, shape, short account, stock index, stock market index, supply



Webster's 1913 Dictionary
  1. \In"dex\, n.; pl. E. {Indexes}, L. {Indices}(?). [L.: cf.
    F. index. See {Indicate}, {Diction}.]
    1. That which points out; that which shows, indicates,
       manifests, or discloses.
             Tastes are the indexes of the different qualities of
             plants.                               --Arbuthnot.
    2. That which guides, points out, informs, or directs; a
       pointer or a hand that directs to anything, as the hand of
       a watch, a movable finger on a gauge, scale, or other
       graduated instrument. In printing, a sign [[hand]] used to
       direct particular attention to a note or paragraph; --
       called also {fist}.
    3. A table for facilitating reference to topics, names, and
       the like, in a book; -- usually alphabetical in
       arrangement, and printed at the end of the volume.
    4. A prologue indicating what follows. [Obs.] --Shak.
    5. (Anat.) The second digit, that next pollex, in the manus,
       or hand; the forefinger; index finger.
    6. (Math.) The figure or letter which shows the power or root
       of a quantity; the exponent. [In this sense the plural is
       always {indices}.]
    {Index error}, the error in the reading of a mathematical
       instrument arising from the zero of the index not being in
       complete adjustment with that of the limb, or with its
       theoretically perfect position in the instrument; a
       correction to be applied to the instrument readings equal
       to the error of the zero adjustment.
    {Index expurgatorius}. [L.] See {Index prohibitorius}
    {Index finger}. See {Index}, 5.
    {Index glass}, the mirror on the index of a quadrant,
       sextant, etc.
    {Index hand}, the pointer or hand of a clock, watch, or other
       registering machine; a hand that points to something.
    {Index of a logarithm} (Math.), the integral part of the
       logarithm, and always one less than the number of integral
       figures in the given number. It is also called the
    {Index of refraction}, or {Refractive index} (Opt.), the
       number which expresses the ratio of the sine of the angle
       of incidence to the sine of the angle of refraction. Thus
       the index of refraction for sulphur is 2, because, when
       light passes out of air into sulphur, the sine of the
       angle of incidence is double the sine of the angle of
    {Index plate}, a graduated circular plate, or one with
       circular rows of holes differently spaced; used in
       machines for graduating circles, cutting gear teeth, etc.
    {Index prohibitorius} [L.], or {Prohibitory index} (R. C.
       Ch.), a catalogue of books which are forbidden by the
       church to be read; the index expurgatorius [L.], or
       expurgatory index, is a catalogue of books from which
       passages marked as against faith or morals must be removed
       before Catholics can read them. These catalogues are
       published with additions, from time to time, by the
       Congregation of the Index, composed of cardinals,
       theologians, etc., under the sanction of the pope. --Hook.
    {Index rerum} [L.], a tabulated and alphabetized notebook,
       for systematic preservation of items, quotations, etc.
  2. \In"dex\, v. t. [imp. & p. p. {Indexed}; p. pr. & vb. n.
    To provide with an index or table of references; to put into
    an index; as, to index a book, or its contents.
  3. \In"dex\, n.
    The ratio, or formula expressing the ratio, of one dimension
    of a thing to another dimension; as, the vertical index of
    the cranium.
Computing Dictionary

(Plural "indices" or "indexes")

1. A number used to select an element of a list, vector, array or other sequence. Such indices are nearly always non-negative integers but see associative array.

2. See inverted index.

3. A search engine.

4. A subject index.

4. See coefficient of x.

[jargon file]

 Definition: a spirit-bubble leveling device on the vertical circle of major surveying instruments.
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