peptone

 
Pronunciation: /ˈpɛptəʊn/

noun

[mass noun] Biochemistry
  • a soluble protein formed in the early stage of protein breakdown during digestion.
  • (also peptone water) a solution of peptone in saline, used as a liquid medium for growing bacteria.

Origin:

mid 19th century: from German Pepton, from Greek pepton, neuter of peptos 'cooked, digested'