activated carbon activated carbon /ˈækˌtɪveɪtɪd ˈkɑrboʊn/

noun

1. Powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons  ( activated carbon , activated charcoal )
   powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons