activity
- the state or quality of being active: There was not much activity in the stock market today. He doesn't have enough physical activity in his life.
- a specific deed, action, function, or sphere of action: social activities.
- work, especially in elementary grades at school, that involves direct experience by the student rather than textbook study.
- energetic activity; animation; liveliness.
- a use of energy or force; an active movement or operation.
- normal mental or bodily power, function, or process.
- Physical Chemistry. the capacity of a substance to react, corrected for the loss of reactivity due to the interaction of its constituents.
- Physics.
- the number of atoms of a radioactive substance that disintegrate per unit of time, usually expressed in curies.
- radioactivity.
- an organizational unit or the function it performs.
Origin of activity
Related Words for activity
action, life, enterprise, exercise, movement, task, work, project, job, venture, act, endeavor, scheme, exertion, motion, labor, liveliness, animation, bustle, hustleExamples from the Web for activity
Contemporary Examples of activity
For me, I just like the activity, and the activity just happens to make money.
Power generation and production is not the sort of activity one usually associates with skiing.
If a person looks like they are alive, but their brain shows no signs of activity, is this person dead or alive?
It is also overwhelmingly pro-regime, and since the start of Syrian unrest the region has become a hotbed of pro-Assad activity.
The play of Sunday, the play of being angels in the choir, is not just a peripheral secondary marginal realm of activity.
Historical Examples of activity
Early were hammers ringing on anvils in the Dragon Court, and all was activity.
The Armourer's PrenticesCharlotte M. Yonge
Its attributes of youth are the activity and eager life with which it is redundant.
Sketches from MemoryNathaniel Hawthorne
The vigilance and activity of Nicias never relaxed for a moment.
Stories from ThucydidesH. L. Havell
His energy and activity throughout the march is described as intense.
Camps, Quarters and Casual PlacesArchibald Forbes
Though wounded, they had retained their strength and activity in battle.
BeowulfUnknown
activity
- the state or quality of being active
- lively action or movement
- any specific deed, action, pursuit, etcrecreational activities
- the number of disintegrations of a radioactive substance in a given unit of time, usually expressed in curies or disintegrations per second
- the capacity of a substance to undergo chemical change
- the effective concentration of a substance in a chemical system. The absolute activity of a substance B, λ B, is defined as exp (μ B RT) where μ B is the chemical potential
Word Origin and History for activity
c.1400, "active or secular life," from Old French activité, from Medieval Latin activitatem (nominative activitas), a word in Scholastic philosophy, from Latin activus (see active). Meaning "state of being active, briskness, liveliness" recorded from 1520s; that of "capacity for acting on matter" is from 1540s.
activity
(ăk-tĭv′ĭ-tē)- A physiological process.
- The presence of neurogenic electrical energy in electroencephalography.
- An ideal concentration for which the law of mass action will apply perfectly.
- The intensity of a radioactive source.
- The ability to take part in a chemical reaction.