|a stew of meat, vegetables, potatoes, etc.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
nonessential non·es·sen·tial (nŏn'ĭ-sěn'shəl)
Being a substance required for normal functioning but not needed in the diet because the body can synthesize it.