Parasit

noun
  1. The word 'parasit' appears to be a misspelling or truncation of the word 'parasite'. A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. noun
    The tapeworm is a common example of a parasite that can live in the intestines of animals.
    Some plants, like mistletoe, are considered parasites because they derive nutrients from other plants.