طفيلي (نبات أو حيوان أو شخص)

طُفَيْلِيّ (نَبَات أو حَيَوان أو شَخْص)‏ \ parasite: a creature (or plant) that lives on another and feeds on its blood, etc.; a person who lives on the efforts of sb. else and does not earn his own living.