#1
activity n. any specific behavior; "they avoided all recreational activity"
. wn #2
activity n. [
action, activeness] the state of being active; "his sphere of activity"; "he is out of action"
. wn #3
activity n. [
bodily process, body process, bodily function] an organic process that takes place in the body; "respiratory activity"
. wn #4
activity n. (chemistry) the capacity of a substance to take part in a chemical reaction; "catalytic activity"
. wn #5
activity n. [
natural process, natural action, action] a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
. wn