indices

Noun

 * The subscript numbers after each element are the indices of that element.
 * A common convention in computing is to have indices beginning at zero, whereas in mathematics indices usually begin at one.
 * 1) * 1972, American Society for Metals, Materials Science and Engineering, volumes 9–10, page 67 (Elsevier Sequoia)
 * To locate any term, and to facilitate use of the dictionary by a national of any of the three languages, alphabetical indices are appended in English, French and German.
 * 1) * 1989, TAPPI Journal, volume 72, page 204 (Technical Association of the Pulp and Paper Industry)
 * Alphabetical indices of the terms in the other languages are given at the end of the book.
 * 1) * 1999, Institute of Oriental Studies of the Saint-Petersburg Branch of the Russian Academy of Sciences, Manuscripta Orientalia: International Journal for Oriental Manuscript Research, volume 5, page 71 (THESA)
 * The dictionary’s four indices are helpful when searching terms. These are: Hanyu Pinyin System Index; Four-Corner System Index; Radical Index; and Japanese Reading System Index.
 * 1) * 2000, Russian Language Journal, volume 54, issues 177–179, page 295 (Michigan State University, Department of German & Russian)
 * Its word indices makes [sic] finding individual words easy.
 * 1) * 2000, Russian Language Journal, volume 54, issues 177–179, page 295 (Michigan State University, Department of German & Russian)
 * Its word indices makes [sic] finding individual words easy.

Usage notes

 * Both plurals indices and indexes are in common use. The OED claims that when referring to a directory listing, the plural indexes should be used.

Etymology 1
Inflected form of.

Etymology 2
Form of the verb.

Etymology 3
Form of the verb.