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descriptor

[dih-skrip-ter]
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noun
  1. a significant word or phrase used to categorize or describe text or other material, especially when indexing or in an information retrieval system.
  2. Computers. a data item that stores the attributes of some other datum: a task descriptor.
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Origin of descriptor

1930–35, for an earlier sense; describe + -tor, with vowel change and devoicing by analogy with similar L derivatives
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for descriptor

description, headline, label, caption, rubric, legend, lemma, descriptor