sprinkler vs sprinkler head

sprinkler

noun
  • A heat-activated device that sprays water in the event of a fire, usually mounted on a ceiling. 

  • A dance move in which the dancer places one hand on the head behind the ear, with elbow bent, stretches the other arm forwards and mimics the motions of an irrigation sprinkler with a rotary head. 

  • An irrigation device that sprays water into the air whilst moving back and forth. 

  • Anything that sprinkles. 

verb
  • To fit with automatic sprinklers for fire prevention. 

sprinkler head

noun
  • A heat-activated device that sprays water in the event of a fire, usually mounted on a ceiling. 

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