English to English
noun
- any specific behavior
They avoided all recreational activity.
source: WordNet 3.0
- the state of being active
His sphere of activity.
He is out of action.
source: WordNet 3.0
- an organic process that takes place in the body
Respiratory activity.
source: WordNet 3.0
- (chemistry) the capacity of a substance to take part in a chemical reaction
Catalytic activity.
source: WordNet 3.0
- a process existing in or produced by nature (rather than by the intent of human beings)
The action of natural forces.
Volcanic activity.
source: WordNet 3.0
- the trait of being active; moving or acting rapidly and energetically
The level of activity declines with age.
source: WordNet 3.0
- The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities.
source: Webster 1913
