ac·tiv·i·ty /ækˈtɪvətɪ/ 名詞
Ac·tiv·i·ty n.; pl. Activities The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities. “The activity of toil.”
Syn: -- Liveliness; briskness; quickness.
n 1: any specific activity; "they avoided all recreational
activity" [ant: inactivity]
2: the state of being active; "his sphere of activity"; "he is
out of action" [syn: action, activeness] [ant: inaction,
3: an organic process that takes place in the body;
"respiratory activity" [syn: bodily process, body
process, bodily function]
4: (chemistry) the capacity of a substance to take part in a
chemical reaction; "catalytic activity"
5: a process existing in or produced by nature (rather than by
the intent of human beings); "the action of natural
forces"; "volcanic activity" [syn: natural process, natural
6: the trait of being active; moving or acting rapidly and
energetically; "the level of activity declines with age"
[syn: activeness] [ant: inactiveness]