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Definition of descriptor
descriptor
/dɪˈskrɪptər/
de · scrip · tor
Adverb:descriptively
•Plural:descriptors
•Adjective:descriptive
descriptor Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
3
descriptor Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A word, phrase, or expression used to describe, characterize, or identify someone or something.
Example
"The critic used the descriptor 'visionary' to praise the director's latest film."
2
A standardized keyword, code, or data structure used in computing and information science to index, categorize, or define the attributes of a file, record, or object.
Example
"When a program opens a document, the operating system assigns a unique file descriptor to track it."
Synonyms
View all synonyms for descriptor• Rhymes for descriptor
• Nearby Words
Word Origin & Etymology
Borrowed from Late Latin descriptor ('one who describes or writes down'), an agent noun from the verb describere ('to write down, copy, or describe'). Its modern senses in library indexing and computer science emerged in the mid-20th century.
Cite this Entry
Wordmom. (2026). Definition of Descriptor. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/descriptor