This is an example of numeric calculation
de·scrip·tion
/dəˈskripSH(ə)n/
noun
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1.a spoken or written representation or account of a person, object, or event.“people who had seen him were able to give a description”คล้ายกัน:accountexplanationelucidationillustrationrepresentationinterpretationchroniclereportnarrationnarrativestoryrecountingrenditionrelationcommentaryversionportrayalportraitword pictureevocationdetails
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2.a sort, kind, or class of people or things.“ships of every description“คล้ายกัน:sortvarietykindstyletypecategoryorderbreedspeciesclassdesignationspecificationgenregenusbrandmakecharacterilkkidneygrainstampmoldstripe