Definition of intensive adjective from the Oxford Advanced Learner's Dictionary

      

    intensive

     adjective
    adjective
    BrE BrE//ɪnˈtensɪv//
     
    ; NAmE NAmE//ɪnˈtensɪv//
     
    Animal farming, Describing work, Growing crops
     
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  1. 1involving a lot of work or activity done in a short time an intensive language course two weeks of intensive training intensive diplomatic negotiations highly intensive courses for business and professional people See related entries: Describing work
  2. 2extremely thorough; done with a lot of care His disappearance has been the subject of intensive investigation.
  3. 3(of methods of farming) aimed at producing as much food as possible using as little land or as little money as possible Traditionally reared animals grow more slowly than those reared under intensive farming conditions. intensive agriculture See related entries: Animal farming, Growing crops
  4. see also capital-intensive, labour-intensive
    Word Origin late Middle English (in the sense ‘vehement, intense’): from French intensif, -ive or medieval Latin intensivus, from intendere ‘intend, extend, direct’, from in- ‘towards’ + tendere ‘stretch, tend’.
See the Oxford Advanced American Dictionary entry: intensive