活性

(chemistry) activity / active / activated

to live / alive / living / work / workmanship

nature / character / property / quality / attribute / sexuality / sex / gender / suffix forming adjective from verb / suffix forming noun from adjective, corresponding to -ness or -ity / essence / CL:個|个[ge4]

flexibility

activated carbon

reagent (chemistry)

surfactant

activated oxygen species (AOS)