read/write head vs swede

read/write head

noun
  • A combination read head and write head 

swede

noun
  • The head. 

  • The fleshy yellow root of a variety of rape, Brassica napus var. napobrassica, resembling a large turnip, grown as a vegetable. 

  • The plant from which this is obtained. 

  • The turnip. 

verb
  • To produce a low-budget remake of a film without the use of professional actors or filming techniques. 

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