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descriptor

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

First recorded in 1930–35, for an earlier sense; describe + -tor, with vowel change and devoicing by analogy with similar Latin derivatives
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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