Biology Root Words & Suffixes ROOT WORD a- / anAmphi Anti Aqua Archae Auto Bi Bio Chromo -cide Circa-, circum Cyte, cyto DermDiDys Eco Ella Endo Eu Ex-, exo Herb Heteros Homo Homos Hydro Hyper Hypo Intra Iso -itis Kilo Logos, -logy Lys, -lysis Meta Micro Mono Morph Neuro Omnis Oo, ovi, ovum Osmos Paleo Para Pathos MEANING without, not both, double Against Water Ancient Self Two, double, twice Life, living Colored Killer Around, about Cell Skin Two, double Bad House Small In, within True Out of, from, outer Plants Different, other Human being Alike, same Water Above, beyond Below, under Within, inside Equal Disease, inflammation Thousand Study of Destroy, break Change Small One, single Shape, form Nerve All Egg To push Ancient Beside, near suffering EXAMPLE anaerobic amphibian antibody aquatic Archaebacteria, archaeology Autotroph, Bipedal, Biology, biosphere chromosome Pesticide, herbicide Circumference, circumnavigate Cytoplasm, lymphocyte epidermis disaccharide dysfunctional Ecology, ecosystem organelle Endocytosis, endoskeleton eubacteria Exocytosis, exoskeleton Herbicide, herbivore heterozygous Hominoid homozygous hydrolysis Hypertonic, hypertrophy Hypertonic, hypothermia intracellular Isotonic, isometric dermatitis kilometer Biology, geology Lysogenic cycle, lysosome Metabolism, metamorphosis Microscope, micrometer Monocyte, monosaccharide metamorphosis neuron omnivore Oocyte, ovary Osmosis, chemiosmosis paleontology parasite Pathogen, pathology ROOT WORD Pod, pedis Phage Photo Phoresis Pilus Poly Post Pseudo Re Semi Skleros Solvere Soma Stasis Stoma Sub Super Supra Syn Terra Tetra Therm Topos Tox Trans Tri Troph Uni Vore Zo Zygous MEANING Foot To eat Light To carry Hair Many After, behind False Again Half Hard To loosen Body Staying Mouth Under, below Above, upper Above, upon Together Earth Four Heat Place Poison Across Three Food, nutrition, nourish One One who eats Animal Joined EXAMPLE pseudopod Esophagus, phagocyte photosynthesis electrophoresis pili Polysaccharide, polymer posterior pseudopod reproduce semicircle Sclera, atherosclerosis Solvent, dissolve Autosome, , lysosome homeostasis stomata Submarine, subspecies superior supraspinatus synthesis terrestrial tetrapod endotherm isotope Toxin, toxicity Transport, transpiration triploid Atrophy, autotroph, heterotroph unicellular Omnivore, carnivore zoology homozygous SUFFIXES SUFFIX -ose -in -ine -ol -ase -ate -oma -one -sis MEANING Simple sugar Protein Amino acid Alcohol Enzyme Contains oxygen Cancer Hormone Process EXAMPLE glucose, lactose, maltose Actin, fibrin, insulin Proline, methionin Butanol, methanol Lactose, helicase, polymerase Carbonate, phosphate, sulfate Lymphoma, carcinoma Testosterone, progesterone Photosynthesis, hydrolysis