noun, plural in·dex·es, in·di·ces [in-duh-seez] /ˈɪn dəˌsiz/.
- a value that identifies and is used to locate a particular element within a data array or table.
- a reference table that contains the keys or references needed to address data items.
- an exponent.
- the integer n in a radical defining the n-th root: ∛ is a radical having index three.
- a subscript or superscript indicating the position of an object in a series of similar objects, as the subscripts 1, 2, and 3 in the series x1, x2, x3.
- winding number.
- a table of contents.
- a preface or prologue.
verb (used with object)
Origin of index
Related Words for indicesindicator, ratio, evidence, basis, symbol, needle, sign, token, rule, mark, clue, indication, formula, model, hand, pointer, guide, symptom, indicant, significant
Examples from the Web for indices
Contemporary Examples of indices
This gloomy attitude is reflected in surveys and indices of business confidence.The Business/Consumer Confidence Split
October 10, 2012
He cautions that these indices are developed for populations, not individuals.
Plus, he says, the indices overlook the most important factor.
At the same time, he warned not to judge the market purely by indices like the Dow.Are We There Yet?
October 10, 2008
Historical Examples of indices
Authors' and First Lines' Indices were updated to match poems.
They are most important as indices to the development of art.
From these indices we are able to determine a basis for some important conclusions.Domesticated Animals
Nathaniel Southgate Shaler
These indices were used in the same way as were the indices for the species of the genus.Speciation in the Kangaroo Rat, Dipodomys ordii
Henry W. Setzer
Contents also, and indices; and a Sketch of Rutherford's Life.Letters of Samuel Rutherford
noun plural -dexes or -dices (-dɪˌsiːz)
- another name for exponent (def. 4)
- a number or variable placed as a superscript to the left of a radical sign indicating by its value the root to be extracted, as in ³√8 = 2
- a subscript or superscript to the right of a variable to express a set of variables, as in using x i for x 1, x 2, x 3, etc
Word Origin for index
according to OED, the plural form of index preferable in scientific and mathematical senses of that word.
"compile an index," 1720, from index (n.). Related: Indexed; indexing.
late 14c., "the forefinger," from Latin index (genitive indicis) "forefinger, pointer, sign, list," literally "anything which points out," from indicare "point out" (see indication). Meaning "list of a book's contents" is first attested 1570s, from Latin phrases such as Index Nominum "Index of Names," index expurgatorius "specification of passages to be deleted from works otherwise permitted." Scientific sense (refractive index, etc.) is from 1829; economic sense (cost-of-living index, etc.) is from 1870, from the scientific usage, from sense "an indicator." The Church sense of "forbidden books" is from index librorum prohibitorum, first published 1564 by authority of Pius IV.
n. pl. in•dex•es
An alphabetical list of subjects treated in a book. It usually appears at the end of the book and identifies page numbers on which information about each subject appears.