Definitions for: Index

[n] the finger next to the thumb
[n] an alphabetical listing of names and topics along with page numbers where they are discussed
[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
[n] a mathematical notation indicating the number of times a quantity is multiplied by itself
[n] a numerical scale used to compare variables with one another or with some reference number
[v] adjust through indexation; "The government indexes wages and prices"
[v] provide with an index, as of a book
[v] list in an index

Webster (1913) Definition: 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.

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.

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.

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

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Famous Quotes Containing Index:

One of the great defects of English books printed in the last century is the want of an index.

-- Lafcadio Hearn (Japanese Author)

There is no greater index of character so sure as the voice.

-- Benjamin Disraeli (British Statesman)

Be true to yourself, and, um, don't worry about some large companies' quarterly profit index.

-- Natalie Merchant (American Musician)

Batter strikeouts continue to go up like the Consumer Price Index.

-- Leonard Robert Davids ( -)

Index investing outperforms active management year after year.

-- Jim Rogers (American Businessman)

There is no index of character so sure as the voice.

-- Benjamin Disraeli (British Statesman)

One of the things that I've always thought I would like to do is to develop an environmental index. Then people can measure their own environmental performance on an index as they do in other ways.

-- Maurice Strong (Canadian Businessman)

The level of shyness has gone up dramatically in the last decade. I think shyness is an index of social pathology rather than a pathology of the individual.

-- Philip Zimbardo (American Psychologist)

To get the feel of how the slider should roll off of your index finger, use this grip and practice at half speed and roughly half the distance to the mound.

-- Steve Carlton (American Athlete)

We have been restraining the growth of the cost of education-that is, tuition, room and board-to be within approximately one and a half percentage points of the consumer price index.

-- Charles Vest (American Educator)

After Madrid, we intensified our investigative efforts once again, and we are in the process of bringing about expansions in security laws and creating an index file system.

-- Otto Schily (German Public Servant)

Whenever I am sent a new book on the lively arts, the first thing I do is look for myself in the index.

-- Julie Burchill (British Journalist)

In order to know the true situation of a Planet at any particular time, the small set of balls are to be put each on its respective axis; then the winch to be turned round until each index points to the given time.

-- David Rittenhouse (American Scientist)

I will be happy with certainly when the corruption index improve.

-- Abdullah Ahmad Badawi ( Politician)

I found out only recently that we were making an index of enemy code signs.

-- Mary Wesley (British Novelist)

I would say to my colleague that the misery index, inflation and unemployment, when added together is the lowest it has been in the last series of Presidents, even going back to Jimmy Carter. So I think the Bush administration is doing a good job.

-- Cliff Stearns (American Politician)

You can judge the quality of their faith from the way they behave. Discipline is an index to doctrine.

-- Tertullian (Roman Author)

The true index of a man's character is the health of his wife.

-- Cyril Connolly (English Journalist)

The basis of computer work is predicated on the idea that only the brain makes decisions and only the index finger does the work.

-- Brian Eno (British Musician)

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