Online Google Dictionary

activity 中文解釋 wordnet sense Collocation Usage
Noun
/akˈtivitē/,
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activities, plural;
  1. The condition in which things are happening or being done
    • - there has been a sustained level of activity in the economy
    • - 16 is the general age of consent for sexual activity
  2. Busy or vigorous action or movement
    • - the room was a hive of activity
  3. A thing that a person or group does or has done
    • - the firm's marketing activities
  4. A recreational pursuit or pastime
    • - a range of sports activities
  5. Actions taken by a group in order to achieve their aims
    • - the police were investigating anarchist activities
  6. The degree to which something displays its characteristic property or behavior
    • - abnormal liver enzyme activities
  7. A thermodynamic quantity representing the effective concentration of a particular component in a solution or other system, equal to its concentration multiplied by an activity coefficient


  1. any specific behavior; "they avoided all recreational activity"
  2. action: the state of being active; "his sphere of activity"; "he is out of action"
  3. bodily process: an organic process that takes place in the body; "respiratory activity"
  4. (chemistry) the capacity of a substance to take part in a chemical reaction; "catalytic activity"
  5. natural process: a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
  6. (active) tending to become more severe or wider in scope; "active tuberculosis"
  7. In chemical thermodynamics activity (symbol: a) is a measure of the “effective concentration” of a species in a mixture. By convention, it is treated as a dimensionless quantity, although its actual value depends on customary choices of standard state for the species. ...
  8. The Japanese animation television series Death Note, is based on the manga series written by Tsugumi Ohba and illustrated by Takeshi Obata. ...
  9. In project management a task is an activity that needs to be accomplished within a defined period of time. An assignment is a task under the responsibility of an assignee which should have a start and end date defined. One or more assignments on a task puts the task under execution. ...
  10. Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting ionizing particles or radiation. The emission is spontaneous in that the nucleus decays without collision with another particle. ...
  11. Activity diagrams are graphical representations of workflows of stepwise activities and actions with support for choice, iteration and concurrency. ...
  12. The Atterberg limits are a basic measure of the nature of a fine-grained soil. Depending on the water content of the soil, it may appear in four states: solid, semi-solid, plastic and liquid. ...
  13. The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities; something done as an action or a movement; something done for pleasure or entertainment, especially one involving movement or an excursion ...
  14. (active) A person or thing that is acting or capable of acting; Having the power or quality of acting; causing change; communicating action or motion; acting; — opposed to passive, that receives; as, certain active principles; the powers of the mind; Quick in physical movement; of an agile and ...
  15. (Active) When pickup's are said to be active they incorporate a pre-amp which requires additional power.  The result is a boost and/or wider range for the pickup.
  16. (Active) When referring to the sun, the term means "changing". Solar activity is the changing appearance of the sun.
  17. (Active) Your request for the item is active and the pick-up library will receive the item when it is available.
  18. (Active) the exact meaning of this term varies from group to group, but generally it means an undergraduate who currently pays dues and participates in chapter events.
  19. (Active) will corrode in the presence of moisture or a "noble" metal.
  20. An active sentence is one which has a basic pattern like the man is running or the dog bit the cat, i.e. it describes what one thing (the subject) does, often to another thing (the object). The verb in an active sentence can be said to be in the active voice. See also passive.
  21. (ACTIVE) A term used to describe when the rays of a star or sun emblem, or a radiating stripe, are shown with undulating or wavy curves – see ‘active and inactive’ below, ‘inactive’ (also ‘radiating’, ‘star’ and its following note, ‘sunburst’ and ‘wavy’).
  22. (Active) An undergraduate member of the fraternity. An active has gone through the pledge process and has been initiated.
  23. (Active) A property listing in the MLS that is currently for sale.
  24. (Active) Player – In poker this refers to a player who is still involved in the game.
  25. (Active) The domain can be modified and appears in a zone file. This is the nominal status for a domain object once it has been published in a zone.