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Meaning of descriptor

de•scrip•tor

Pronunciation: (di-skrip'tur), [key]
— n.
  1. a significant word or phrase used to categorize or describe text or other material, esp. when indexing or in an information retrieval system.
  2. a data item that stores the attributes of some other datum: a task descriptor.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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