descriptive vs identifier

descriptive

noun
  • An adjective (or other descriptive word) 

adj
  • Of, relating to, or providing a description. 

  • Describing and seeking to classify, as opposed to normative or prescriptive. 

  • Of an adjective, stating an attribute of the associated noun (as heavy in the heavy dictionary). 

  • Describing the structure, grammar, vocabulary and actual use of a language. 

identifier

noun
  • Something that identifies or uniquely points to something or someone else. 

  • One who identifies as a particular type or role; one who says and believes that they are a certain thing. 

  • A formal name used in source code to refer to a variable, function, procedure, package, etc. or in an operating system to refer to a process, user, group, etc. 

  • A primary key. 

  • Someone who identifies; a person who establishes the identity of someone or something. 

  • A guidebook that helps determine the specific class of an object (such as a mushroom, herb, fish, bird, drug, or mineral), or its individual identity (such as that of a star). 

  • A code that distinguishes a particular element from all other elements in a document. 

How often have the words descriptive and identifier occurred in a corpus of books? (source: Google Ngram Viewer )