put in motion or move to act

make active or more active

make more adsorptive

aerate (sewage) so as to favor the growth of organisms that decompose organic matter

make (substances) radioactive

(of sewage) treated with aeration and bacteria to aid decomposition

(of e.g. a molecule) made reactive or more reactive

rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive

(military) set up and placed on active assignment

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

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