lab coat vs robe

lab coat

noun
  • A white coat worn by laboratory workers to protect day clothes from damage by spillage etc. 

robe

noun
  • A long loose outer garment, often signifying honorary stature. 

  • The skin of an animal, especially the bison, dressed with the fur on, and used as a wrap. 

  • A wardrobe, especially one built into a bedroom. 

  • The largest and strongest tobacco leaves. 

verb
  • To put on official vestments. 

  • To clothe; to dress. 

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