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TERMINOLOGY
Common Prefixes, Suffixes and Roots
| Prefix / Suffix / Root | To do with / Examples in text. |
|---|---|
| a-/an- | Lack of. I.E. anuria, agranulocyte, asystole, anaemia. |
| -aemia | Of the blood. I.E. anemia, hypoxaemia, uramia, hypovolaemia. |
| angio- | Vessel. I.E. angiotensin, haemangioma |
| anti- | Against. I.E. antidiuretic, anticoagulant, anitgen, antimicrobial. |
| -blast | Germ, bud. I.E. reticuloblast, osteoblast. |
| brady- | Slow. I.E. bradycardia. |
| broncho- | Lung / bronchus. I.E. bronchiole, bronchitis, bronchus. |
| card- | Heart. I.E. cardiac, myocardium, tachycardia. |
| chole- | Bile. I.E. cholecystokinin, cholecystitis, cholangitis |
| cyto-/-cyte | Cell. I.E. erythrocyte, cytosol, cytoplasm, cytotoxic. |
| derm- | Skin. I.E. dermatitis, dermatome, dermis. |
| dys- | Difficult. I.E. dysuria, dyspnoea, dysmenorrhoea, dysplasia. |
| -ema | Swelling. I.E. oedma, emphysema, lymphoedema. |
| endo- | Inner. I.E. endocrine, endocytosis, endothelium. |
| erythro- | Red. I.E. erythrocyte, erythropoietin, erythropoiesis. |
| exo- | Outside. I.E. exocytosis, exophthalmos. |
| extra- | Outside. I.E. extracellular, extrapyramidial. |
| -fferent | Carry. I.E. afferent, efferent |
| gast- | Stomach. I.E. gastric, gastrin, gastritis, gastrointestinal. |
| -gen- | Origin / Production. I.E. gene, genome, genetic, antigen, pathogen, allergen. |
| -globin | Protein. I.E. myoglobin, haemoglobin. |
| haem- | Blood. I.E. haemostasis, haemorrhage, haemolytic. |
| -hydr- | Water. I.E. dehydration, hydrostatic, hydrocephalus. |
| hepat- | Liver. I.E. hepatic, hepatitis, hepatomegaly, hepatocyte. |
| hyper- | Excess / Above. I.E. hypertension,hypertrophy, hypercapnia. |
| hypo- | Below / Under. I.E. hypoglycaemia, hypotension, hypovolaemia. |
| intra- | Within. I.E. intracellular, intracranial, intracular. |
| -ism | Condition. I.E. hyperthyroidism, dwarfism, rheumatism. |
| -itis | Inflammation. I.E. appendicitis, hepatitis, cystitis, gastritis. |
| lact- | Milk. I.E. lactation, lactic, lacteal. |
| lymph- | Lymph Tissue. I.E. lymphocyte,lymphatic, lymphoedema. |
| lyso-/-lysis | Breaking Down. I.E. lysosome, glycolysis, lysozyme. |
| -mega- | Large. I.E. megaloblast, acromegaly, splenomegaly, hepatomegaly. |
| micro- | Small. I.E. microbe, microtubules, microvilli. |
| myo- | Muscle. I.E. myocardium, myoglobin, myopathy, myosin. |
| neo- | New. I.E. neoplasm, gluconeogensis, neonate. |
| nephro- | Kidney. I.E. nephron, nephrotic, nephroblastoma, nephrosis. |
| neuro- | Nerve. I.E. neurone, neuralgia, neuropathy. |
| -oid | Resembling. I.E. myeloid, sesamoid, sigmoid. |
| -oma | Tumour. I.E. carcinoma, melanoma, fibroma. |
| -ophth- | Eye. I.E. xerophthalmia, ophthalmic, exophthalmos. |
| -ory | Reffering to. I.E. secretory, sensory, auditory, gustatory. |
| osteo- | Bone. I.E. osteocyte, osteoarthritis, osteoporosis. |
| -path- | Disease. I.E. athogenesis, neuropathy, nephropathy. |
| -plasm | Substance. I.E. cytoplasm, neoplasm. |
| pneumo- | Lung / Air. I.E. pneumothorax, pneumonia, pneumotoxic. |
| poly- | Many. I.E. polypeptide, polyuria, polycythaemia. |
| -rrhagia | Excessive flow. I.E. menorrhagia. |
| sub- | Under. I.E. subphrenic, subarachnoid, sublingual. |
| tachy- | Excessively fast. I.E. tachycardia. |
| thrombo- | Clot. I.E. thrombocyte, thrombosis, thrombin, thrombus. |
| -tox- | Poison. I.E. toxin, cytotoxic, hepatoxic. |
| -uria | Urine. I.E. anuria, polyuria, heamaturia, nocturia. |
| vas, vaso- | Vessel. I.E. vasoconstriction, vas deferens, vascular. |
| Aden- | Gland I.E. disease in a gland. |
| Arthr- | JOINT, Arthritis I.E. inflammation of a joint |
| Carcin- | CANCER, Carcinogen I.E substance that causes Cancer. |
| Carp- | Wrist I.E. carpal tunnel syndrome (painful condition in which nerve gets trapped in carpal bones of wrist) |
| Hemat- | Blood I.E. Hematocrit (count of cells in blood) |
| Histo- | Tissue I.E. Hematocrit (the degree to which a donor's tissues match a recipients tissues for a graft). |
| Sept- | Contamination I.E. Septic shock (drop in blood pressure due to contamination of blood). |
| ab- | Away from |
| ad- | Toward |
| mono- | 1 |
| uni- | 1 |
| bi- | 2 |
| di- | 2 |
| tri- | 3 |
| quad- | 4 |
| quadri- | 4 |
| tetra- | 4 |
| hemi- | Half or Part |
| semi- | Half or Part |
| multi- | Many |
| poly- | Many |
| macro- | Large |
| micro- | Small |
| nulli- | None |
| primi- | 1st |
| ante / pre- / pro- | Before |
| dia- | Through |
| ecto- / ex- / exo- | Out, Away from |
| epi- | Above / On |
| en- | Inside |
| inter- | Between |
| intra- | Within |
| meso- | Middle |
| peri- | Around |
| post- | After / Behind |
| retro- | Behind / Backward |
| super- / supra | Above / Beyond |
| contra | Against |
| Near / Beside / eu- | Good / Normal |
| in- | in / Inside |
| mal- | Bad |
| para | Near / Beside / also Abnormal |
| par- | Through / By |