title: Descriptor
text: # Descriptor
  
  Descriptor may refer to:
  
  In computer science:
  
  * Billing descriptor, the merchant's name that appears on a credit card statement
  * Short Payment Descriptor, a compact data format for an easy exchange of a payment information using modern electronic channels
  * Data descriptor, a software or hardware structure describing data
  * Visual descriptors, a representation of visual features in image or video
  * Security descriptor, a Windows data structure containing security information
  * Segment descriptor, used for memory addressing in x86 computer architectures
  * Index term, also known as a "descriptor" in information retrieval
  * File descriptor, an abstract key for accessing a file
  
  In chemistry:
  
  * Molecular descriptor, which helps characterize a chemical compound
  * Descriptor (chemistry), a prefix used to specify a chemical name
  
  In languages:
  
  