| 释义 |
descriptor
de·scrip·tor D0157200 (dĭ-skrĭp′tər)n. Computers A word, phrase, or alphanumeric character used to identify an item in an information storage and retrieval system.
[Late Latin dēscrīptor, describer, from Latin dēscrībere, dēscrīpt-, to describe; see describe.]descriptor (dɪˈskrɪptə) na word or phrase which constitutes the descriptive element of a sentencea keyword assigned to a data-file and stored in a search index so that it can be located through a search engine or in a databasede•scrip•tor (dɪˈskrɪp tər)
n. a significant term used to categorize or locate material in an index or information retrieval system. [1960–65] Thesaurus| Noun | 1. | descriptor - the phonological or orthographic sound or appearance of a word that can be used to describe or identify something; "the inflected forms of a word can be represented by a stem and a list of inflections to be attached"form, signifier, word formlinguistics - the scientific study of languageword - a unit of language that native speakers can identify; "words are the blocks from which sentences are made"; "he hardly said ten words all morning"plural, plural form - the form of a word that is used to denote more than onesingular, singular form - the form of a word that is used to denote a singletonghost word - a word form that has entered the language through the perpetuation of an errorroot word, stem, root, theme, radical, base - (linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem"etymon, root - a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processescitation form, entry word, main entry word - the form of a word that heads a lexical entry and is alphabetized in a dictionaryabbreviation - a shortened form of a word or phraseacronym - a word formed from the initial letters of the several words in the name | | 2. | descriptor - a piece of stored information that is used to identify an item in an information storage and retrieval systeminformation - knowledge acquired through study or experience or instructioncomputer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures |
Translationsdescriptor
descriptor[di′skrip·tər] (computer science) A word or phrase used to identify a document in a computer-based information storage and retrieval system. descriptor (operating system)An integer, string or other small datavalue which refers to one of several objects allocated to aprogram by the operating system, usually the kernel. Acommon example is a Unix file descriptor which is a smallinteger that identifies an I/O channel. Another example is areference to an area of memory (e.g. shared memory).
Compare capability.descriptor(1) A word or phrase that identifies a document in an indexed information retrieval system.
(2) A category name used to identify data.Descriptor
DescriptorA variable describing assets, used as an element of a risk index. For example, a volatility risk index, distinguishing high volatility assets from low volatility assets, could consist of several descriptors based on short term volatility, long term volatility, systematic and residual volatility, etc.descriptor
Related to descriptor: Deployment Descriptor, File descriptorSynonyms for descriptornoun the phonological or orthographic sound or appearance of a word that can be used to describe or identify somethingSynonymsRelated Words- linguistics
- word
- plural
- plural form
- singular
- singular form
- ghost word
- root word
- stem
- root
- theme
- radical
- base
- etymon
- citation form
- entry word
- main entry word
- abbreviation
- acronym
noun a piece of stored information that is used to identify an item in an information storage and retrieval systemRelated Words- information
- computer science
- computing
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