单词	free-living
释义	free-living adjective free-liv·​ing ˈfrē-ˈli-viŋ  1 : marked by more than usual freedom in the gratification of appetites 2 a : not fixed to the substrate but capable of motility a free-living protozoan b : being metabolically independent : neither parasitic nor symbiotic a free-living adult hairworm Word History First Known Use 1818, in the meaning defined at sense 1 Medical Definition free-living adjective free-liv·​ing ˈfrē-ˈliv-iŋ  1 : not fixed to the substrate but capable of motility a free-living protozoan 2 : being metabolically independent : neither parasitic nor symbiotic
随便看	biomarker biomarkers biomass biomasses biomaterial biomaterials biomathematical biomathematician biomathematicians biomathematics biome biomechanical biomechanically biomechanics biomechatronic biomedical biomedical engineer biomedical engineering biomedicine biomedicines biomes biometeorological biometeorologies biometeorologist biometeorologists

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