any specific behavior; they avoided all recreational activity'

the state of being active; his sphere of activity; he is out of action

[ Syn: action , action , action , activeness , activeness , activeness ]

an organic process that takes place in the body; respiratory activity

[ Syn: bodily process , body process , bodily function ]

(chemistry) the capacity of a substance to take part in a chemical reaction; catalytic activity'

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 action , action ]

the trait of being active; moving or acting rapidly and energetically; the level of activity declines with age

[ Syn: activeness ]