par‧a‧sit‧ic /ˌpærəˈsɪtɪk◂/ (also par‧a‧sit‧i‧cal /-ˈsɪtɪkəl/) adjective

1. living in or on another plant or animal and getting food from them:
parasitic fungi

2. a parasitic person is lazy, does no work, and depends on other people

3. a parasitic disease is caused by parasites
—parasitically /-kli/ adverb

[TahlilGaran] Dictionary of Contemporary English ▲