teat vs teething ring

teat

noun
  • An artificial nipple used for bottle-feeding infants. 

  • The projection of a mammary gland from which, on female mammals, milk is secreted. 

  • Synonyms: tit (now vulgar), pap, nipple, dug 

  • Something resembling a teat, such as a small protuberance or nozzle. 

teething ring

noun
  • An object designed for a baby or toddler to chew during the teething stage 

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