parasitic

adjective

• (of an organism) living as a parasite:mistletoe is parasitic on trees
• resulting from infestation by a parasite:mortality from parasitic diseases
• derogatory habitually relying on or exploiting others:attacks on the parasitic existence of Party functionaries
• Phonetics (of a speech sound) inserted without etymological justification (e.g., the b in thimble); epenthetic.