electricity vs wall wart

electricity

noun
  • Electric power/energy as used in homes etc., supplied by power stations or generators. 

  • Originally, a property of amber and certain other nonconducting substances to attract lightweight material when rubbed, or the cause of this property; now understood to be a phenomenon caused by the distribution and movement of charged subatomic particles and their interaction with the electromagnetic field. 

  • The study of electrical phenomena; the branch of science dealing with such phenomena. 

  • A feeling of excitement; a thrill. 

wall wart

noun
  • a power supply which plugs directly to the mains socket, without an intervening cord, and via a cord connects to power the device it is used for 

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