active [ 'æktivz ]

• n.
  • chemical agent capable of activity

    同义词： active agent

  • the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb

    "`The boy threw the ball' uses the active voice"

    同义词： active voice

  • a person devoted to the active life
• adj.
  • tending to become more severe or wider in scope

    "active tuberculosis"

  • engaged in or ready for military or naval operations

    "on active duty"

    同义词： combat-ready fighting(a)

  • disposed to take action or effectuate change

    "a director who takes an active interest in corporate operations"; "an active antagonism"; "he was active in drawing attention to their grievances"

  • taking part in an activity

    "an active member of the club"; "he was politically active"

    同义词： participating

  • characterized by energetic activity

    "an active toddler"; "active as a gazelle"; "an active man is a man of action"

  • exerting influence or producing a change or effect

    "an active ingredient"

  • full of activity or engaged in continuous activity

    "an active seaport"; "an active bond market"; "an active account"

  • in operation

    "an active tradition"

    同义词： alive(p)

  • of the sun; characterized by a high level activity in sunspots and flares and radio emissions
  • expressing that the subject of the sentence has the semantic function of actor:

    "Hemingway favors active constructions"

  • expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')

    同义词： dynamic

  • (of e.g. volcanos) capable of erupting
  • (of e.g. volcanos) erupting or liable to erupt

    "active volcanos"

  • engaged in full-time work

    "active duty"; "though past retirement age he is still active in his profession"

以上来源于: WordNet