Noun
(physics) The activity per unit mass of a radionuclide: number of decays per unit time, per mass.
Used other than figuratively or idiomatically: see specific, activity.
Source: en.wiktionary.orgIt is important that an aim never be defined in terms of a specific activity or method. It must always relate to a better life for everyone. W. Edwards Deming
The specific activity of these sewage bacteria is typically three to four times greater than that of the autochthonous (background) bacterial population. Source: Internet
In general, the vaguely defined danger of "Communist influence" was a more common theme in the rhetoric of anti-Communist politicians than was espionage or any other specific activity. Source: Internet
In our personal and business lives before the information age, we would go to a specific place to do a specific activity. Source: Internet
Programs are scheduled far in advance, so there is a chance a specific activity will become unavailable. Source: Internet