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n. pl. in·dex·es or in·di·ces (-dĭ-sēz′)
1. Something that serves to guide, point out, or otherwise facilitate reference, especially:
a. An alphabetized list of names, places, and subjects treated in a printed work, giving the page or pages on which each item is mentioned.
b. A thumb index.
c. A table, file, or catalog.
d. Computers A list of keywords associated with a record or document, used especially as an aid in searching for information.
2. Something that reveals or indicates; a sign: "Her face ... was a fair index to her disposition" (Samuel Butler).
3. A character (☞) used in printing to call attention to a particular paragraph or section. Also called hand.
4. An indicator or pointer, as on a scientific instrument.
a. Mathematics A number or symbol, often written as a subscript or superscript to a mathematical expression, that indicates an operation to be performed, an ordering relation, or a use of the associated expression.
b. A number derived from a formula, used to characterize a set of data.
a. A statistical value that represents the price or value of an aggregate of goods, services, wages, or other measurable quantities in comparison with a reference number for a previous period of time.
b. A number that represents the change in price or value of stocks or other securities in a particular market, sector, or asset class.
c. The stocks or other securities represented by an index.
7. Index Roman Catholic Church A list formerly published by Church authority, restricting or forbidding the reading of certain books.
tr.v. in·dexed, in·dex·ing, in·dex·es
a. To furnish with an index: index a book.
b. To enter in an index.
2. To indicate or signal.
3. To adjust through indexation.

[Middle English, forefinger, from Latin; see deik- in Indo-European roots.]

in′dex′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.indexer - someone who provides an index
skilled worker, skilled workman, trained worker - a worker who has acquired special skills
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
We thus shift states from "inflation indexer" status to "statutory increaser" status if and when they implement a newly legislated increase.
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Among the community of professional indexers, Margie Towery is well know for the quality of expertise as consummate indexer.
The indexer is confronted with the practical question of how to transform continuous forms of knowledge into discontinuous digits--and the discourse on indexing even addresses the dangers which go along with these practices.
The Accidental Indexer offers an authoritative guide to the indexing profession, reviewing the field, its specialties, and how to begin and run a freelance indexing business.
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The author has organized the main body of her text in ten chapters devoted to what an indexer is and what an indexer does, pathways into professional indexing, the varieties of indexing, best practices in indexing, the tools of the trade, marketing and managing client relations, managing stress and balancing the professional indexerAEs work and personal lives, and a wide variety of other related subjects.
A key to ensure excellent system performance is a robust indexer, which analyzes the text-based fields (properties) in the documents in order to enable fast queries.