parasitic plant pa·ra·si·ticplant uncommon noun 1. plant living on another plant and obtaining from it organic nutriment Synonymsparasitic plant Related words Broader terms parasite Narrower terms parasite yewbuckleyabastard toadflaxrabbitwoodLoranthaceaemistletoeAmerican mistletoeflame tree WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.