Definitions for activityækˈtɪv ɪ ti

This page provides all possible meanings and translations of the word activity

Random House Webster's College Dictionary

ac•tiv•i•tyækˈtɪv ɪ ti(n.)(pl.)-ties.

  1. the state or quality of being active.

  2. energetic activity; animation; liveliness.

  3. a specific deed, action, function, or sphere of action:

    social activities.

  4. an educational task that involves direct experience and participation of the student.

    Category: Education

  5. a use of energy or force; an active movement or operation.

  6. normal mental or bodily power, function, or process.

  7. the capacity of a chemical substance to react, corrected for the loss of reactivity due to the interaction of its constituents.

    Category: Chemistry

  8. the number of atoms of a radioactive substance that disintegrate per unit of time, usu. expressed in curies.

    Category: Physics

    Ref: radioactivity .

  9. an organizational unit or the function it performs.

Origin of activity:

1520–30; (< MF) < ML

Princeton's WordNet

  1. activity(noun)

    any specific behavior

    "they avoided all recreational activity"

  2. action, activity, activeness(noun)

    the state of being active

    "his sphere of activity"; "he is out of action"

  3. bodily process, body process, bodily function, activity(noun)

    an organic process that takes place in the body

    "respiratory activity"

  4. activity(noun)

    (chemistry) the capacity of a substance to take part in a chemical reaction

    "catalytic activity"

  5. natural process, natural action, action, activity(noun)

    a process existing in or produced by nature (rather than by the intent of human beings)

    "the action of natural forces"; "volcanic activity"

  6. activeness, activity(noun)

    the trait of being active; moving or acting rapidly and energetically

    "the level of activity declines with age"

Kernerman English Learner's Dictionary

  1. activity(noun)ækˈtɪv ɪ ti

    ≠ inactivity

    physical activity; volcanic activity

  2. activityækˈtɪv ɪ ti

    sth you do for pleasure

    activities for 4 to 8 year olds; an activity center

  3. activityækˈtɪv ɪ ti

    sth done for a particular purpose

    business activities; terrorist activity

Wiktionary

  1. activity(Noun)

    The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities.

    Pit row was abuzz with activity.

  2. activity(Noun)

    something done as an action or a movement

    The activity for the morning was a walk to the store.

  3. activity(Noun)

    something done for pleasure or entertainment, especially one involving movement or an excursion.

    Quilting can be a fun activity.

  4. activity(Noun)

    Use (of internet, playstation, bank account etc.)

  5. Origin: From activité, from activitas.

Webster Dictionary

  1. Activity(noun)

    the state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities

The Standard Electrical Dictionary

  1. Activity

    The rate of doing work; the work done per second by any expenditure of energy. The activity of a horse-power is 550 foot lbs. per second, or 746 volt-coulombs per second. The practical electric unit is the volt-ampere, often called the watt. (Sec Energy, Electric.)

Dictionary of Military and Associated Terms

  1. activity

    1. A unit, organization, or installation performing a function or mission, e.g., reception center, redistribution center, naval station, naval shipyard. 2. A function, mission, action, or collection of actions. Also called ACT. See also establishment.

Freebase

  1. Thermodynamic activity

    In chemical thermodynamics, activity is a measure of the “effective concentration” of a species in a mixture, in the sense that the species' chemical potential depends on the activity of a real solution in the same way that it would depend on concentration for an ideal solution. By convention, activity is treated as a dimensionless quantity, although its value depends on customary choices of standard state for the species. The activity of pure substances in condensed phases is normally taken as unity. Activity depends on temperature, pressure and composition of the mixture, among other things. For gases, the activity is the effective partial pressure, and is usually referred to as fugacity. The difference between activity and other measures of composition arises because molecules in non-ideal gases or solutions interact with each other, either to attract or to repel each other. The activity of an ion is particularly influenced by its surroundings. Activities should be used to define equilibrium constants but, in practice, concentrations are often used instead. The same is often true of equations for reaction rates.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'activity' in Spoken Corpus Frequency: #831

  2. Written Corpus Frequency

    Rank popularity for the word 'activity' in Written Corpus Frequency: #1881

  3. Nouns Frequency

    Rank popularity for the word 'activity' in Nouns Frequency: #139


Translations for activity

Kernerman English Multilingual Dictionary

activity(noun)

the state of being active or lively

The streets are full of activity this morning.

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