par ‧ a ‧ site /ˈpærəsaɪt/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: Latin ; Origin: Greek parasitos , from para- ( ⇨ ↑ para- ) + sitos 'grain, food' ]
1 . a plant or animal that lives on or in another plant or animal and gets food from it
2 . informal a lazy person who does not work but depends on other people – used to show disapproval