Physical activity is an inclusive term that refers to any expenditure of energy brought about by bodily movement via the skeleta
l muscles; as such, it includes the complete spectrum of activity from very low resting levels to maximal exertion. Exercise is a component of physical activity. The distinguishing characteristic of exercise is that it is a structured activity specifically planned to develop and maintain physical fitness. "exercise" Britannica School. Encyclopaedia Britannica, Inc., 2013. Web. 21 Oct. 2013. How is the word distinguishing used in this excerpt?
The word "distinguishing" as used in the given excerpt above is used as an adjective that means noticing or distinctive. It is the word used in order to identify the difference of the characteristics between the objects being compared in the sentence.
