activity

ac·tiv·i·ty

noun \ak-ˈtiv-ət-ē\

plural ac·tiv·i·ties

Definition of ACTIVITY

1

: natural or normal function: as a : a process (as digestion) that an organism carries on or participates in by virtue of being alive b : a similar process actually or potentially involving mental function; specifically : an educational procedure designed to stimulate learning by firsthand experience

2

: the characteristic of acting chemically or of promoting a chemical reaction <the activity of a catalyst>