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



    BrE BrE//ˌpærəˈsɪtɪk//
    ; NAmE NAmE//ˌpærəˈsɪtɪk//
    (less frequent parasitical
    BrE BrE//ˌpærəˈsɪtɪkl//
    ; NAmE NAmE//ˌpærəˈsɪtɪkl//
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  1. 1caused by a parasite a parasitic disease/infection
  2. 2living on another animal or plant and getting its food from it a parasitic mite
  3. 3(disapproving) (of a person) always relying on or benefiting from other people and giving nothing back She lives a parasitic existence, constantly borrowing money from her friends.
  4. Word Originearly 17th cent.: via Latin from Greek parasitikos, from parasitos ‘(person) eating at another's table’.
See the Oxford Advanced American Dictionary entry: parasitic