|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a scrap or morsel of food left at a meal.|
nitrile ni·trile or ni·tril (nī'trəl)
An organic cyanide containing a CN group.
|nitrile also nitril (nī'trəl) Pronunciation Key
An organic compound, such as acrylonitrile, containing the cyanide group CN. Nitriles are typically colorless solids or liquids and have a distinctive smell.