Definition of descriptor
: something (such as a word or characteristic feature) that serves to describe or identify
especially
: a word or phrase (such as an index term) used to identify an item (such as a subject or document) in an information retrieval system
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Great Words for Scrabble
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- Which of the following Q-without-U words means the number five in cards or dice?

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Merriam-Webster unabridged
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Time Traveler for descriptor
The first known use of descriptor was in 1946
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