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Terminolgy
prefix / word root / suffix
| Term | Definition | Example / associated word(s) |
|---|---|---|
| ap- / apo- | separated, derived from | Apophysis |
| Path/o- | disease | Pathology |
| co- / con- / com- | together, with | congenital, connect |
| mes- / meso- | middle | mesoderm |
| para- | beside | Parathyroid glands, paramedic |
| peri- | around | periosteum, pericardium |
| inter- | between | intervertebral, interstitial fluid |
| mid- | middle | midline |
| em- / en- | in | embryo, endoscopy |
| per- | through | percutaneous |
| contra- | against | contraception |
| brachy- | short | brachytherapy |
| tri | three | triceps, tricycle |
| ecto | outside | ectopic pregnancy |
| end- / endo- / ent- / ento- | within, inner | endotracheal |
| dia- | through, apart, across, between | dialysis, diagnosis |
| aut- / auto- | self | autograph |
| eu- | normal | eupnea, euglycemia |
| mult- multi- | many, multiple | multipara |
| iso- | same, equal | isotonic, Equilateral triangle (equal parts) |
| sym- / syn- | together, with | syndrome, symphysis |
| ab- | away from, take away | abduction |
| retro- | backward, behind | retroperitoneal |
| circum- | around | circulation, circumference, circumcision |
| quadri- | four | quadriplegic |
| oligo- | few, very little | oliguria |
| amphi- | double, both sides | amphicrania, amphibian |
| dys- | bad, painful, dufficult | dysphagia |
| ad- | towards, increase | adduction |
| neo- | new, recent | neonate |
| ana- | apart, us | anaphylaxis |
| cata- | lower, down, against | catabolism |
| tachy- | fast, rapid | Tachycardia |
| pseudo- | false | pseudocyesis |
| pan- | all | Pancytopenia |
| micro- / micr- | tiny, small | microscope |
| onco- | tumor, mass | oncology |
| hyp- / hypo- | below normal, beneath, deficient | Hypoglycemia |
| intro- | into, within | introversion |
| poly- | many | polymyositis |
| ambi- / ambo- | both | ambidextrous |
| infra- / infer- | below, beneath | inferior, infra-axillary |
| re- | again | repeat, reinfection |
| im- / in- | in, within | inhalation |
| hyper- | high, above normal | hyperthyroidism |
| macro- | large | macrocephalus |
| ortho- | straight, norma | orthopedics, orthodontics |
| epi- / ep- | upon, over, on, above | epidermis |
| tele- | distant | telehealth |
| mono- / uni- | one | monochromatic, unicycle |
| extra- / extro- | outside of, beyond | extrapleural, extrovert |
| pre- / pro- | before, in front of | prenatal, prognosis |
| de- | down, from, without | dehydration |
| anti- | against | antipyretic |
| mal- | bad | malformation |
| di- | two, twice | dipolpia |
| semi- | half | semicomatose |
| intra- | inside, within | intravenous, intrathecal injection |
| trans- | through, across | transdermal, transportation |
| ultra- | excessive, beyond | ultrasound, ultraviolet |
| meta- | changing, beyond | metabolism |
| hemi- / semi- | half, half of | hemicolectomy, semicomatose |
| super- / supra- | above, excessive | superior, suprascapular |
| bi- | twice, double, both | bilateral, bicycle |
| ante- | before, forward, in front of | anterior, antepartum |
| uni- | one | unilateral |
| sub- | under, beneath | subcutaneous layer |
| nulli | none | nulligravida |
| brady- | slow | bradycardia |
| post- | after, following, behind | postpartum, posterior |
| e- / ec- / ex- | from, away from, outside | ectoderm |
| a- / an- | absence of, without | atypical, anoxia, anemia |
| dis- | apart from, free from | dislocation, dissected |
| presby- | old age, elderly | presbyopia |
| gynec / o | female reproductive system | gynecology |
| cardi /o | heart | cardiomyopathy |
| my /o | muscule | myocarditis |
| hepat /o | liver | hepatomegaly |
| bronch / i bronch / o | brochus, lungs | bronchitis |
| men / o | menstration | |
| arteri / o | artery | arteriosclerosis |
| thorac / o | chest | thorax |
| pulumono- | lung | pulmonary |
| col / o | colon | |
| reno- | kidney | renal failure |
| adeno- | gland | adenoids |
| hem /o hemat / o | blood | hemodialysis |
| procto- | rectum | proctoscopy |
| hist / o | tissue | |
| esophag | esophagus | |
| duoden / o | duodenum | |
| erythr / o | red | erythrocyte |
| pneum / o | lung, air | pneumothorax |
| larynag / o | larynx | |
| osteo - | bone | osteonecrosis |
| gylc / o | sugar | glycogen |
| cholecyst / o | gullbladder | |
| carcin / o | cancer | carcinogen |
| arthr / o | joint | arthrocentesis |
| angi / o | vessel | angiogram |
| andr / o | male | |
| gastr / o | stomach | gastroparesis |
| cyt / o | cell | cytotoxic |
| opt / o | vision | ophtgalmologist |
| encephal - | brain | encephalitis |
| nephr / o | kidney | nephrology |
| leuk / o | white | leukocyte |
| abdomin / o | abdomen | |
| orch / o | testicle, testis | |
| cysti cyst / o | bladder, cyst | |
| hyster / o | uterus | |
| audi / o | hearing | |
| chrondr / i chrondr / o | cartilage | |
| neur / o | nerve | neuropathy |
| myelo- | bone marrow / spinal cord | myelodysplasia |
| cephal / o | head | cephalogram |
| enter / o | intestine | enterocolitis |
| rhondo | rose-red | |
| glauco | gray | |
| polio | gray | |
| xantho | yellow | |
| alb- | pale | |
| melano | black | |
| chloro- | green | |
| chromo / chromato | color | |
| porphyr | purple | |
| cyano | blue | |
| -ac | pertaining to | |
| -ad | towards | |
| -al | pertaining to | |
| -algia | pertaining to pain | neuralgia |
| -dynia | pertaining to pain | |
| -ar | pertaining to | |
| -ary | pertaining to | |
| -cele | protrusion | |
| -centesis | surgical withdrawal of fluid puncturing | pericardiocentesis |
| -cide -cidal | kill destroy | suicide |
| -coccus | berry shaped | |
| -cyte | cell | |
| -eal | pertaining to | |
| -ectomy | surgical removal | hysterectomy |
| -emia | pertaining to blood | anemia |
| -esis | condition | |
| -gen | substance that produces / causes | |
| -genic | produced by causing | carcinogenic |
| -gram | record of | |
| -graph | instrument used to record | |
| -graphy | a process of recording | |
| -ia | condition of, diseased or abnormal state | |
| -ic | pertaining to | |
| -ior | pertaining to | |
| -ism | state of, condition, theory | |
| -itis | inflammation | |
| -logist | specialist who studies & treats | |
| -logy | study of | |
| -lysis | destruction, breakdown | |
| -megaly | enlargement | |
| -meter | instrument used to measure | |
| -metry | process of measuring | |
| -oid | resembling | |
| -oma | tumor | |
| -opia | vision condition | |
| -opsy | to view | |
| -osis | abnormal condition, condition | |
| -ous | pertaining to | |
| -pathy | disease, abnormality | |
| -penia | lack of, deficiency | |
| -pexy | surgical fixation, suspension | |
| -phagia | eating | |
| -phobia | intense fear of | |
| -plasia | formation, development | |
| -plasm | growth, substance, formation | |
| -plasty | surgical reconstruction | |
| -plegia | paralysis | |
| -pnea | breathing | |
| -poieses | production, manufacture of | |
| -poietic | production, manufacture of | |
| -ptosis | drooping | |
| -rrhage | excessive flow | |
| -rrhagia | excessive flow | |
| -rrhapahy | suturing in place, fixation | |
| -rrhea | flow, discharge | |
| -rrhexis | rupture, breaking away | |
| -sclerosis | hardening | |
| -scope | instrument used to visually examine | |
| -scopic | visual examination | |
| -scopy | process of visual exam | |
| -spasm | sudden, involuntary | |
| -stasis | to stop | |
| -stomy | artificial surgical opening | |
| -tome | instrument used to cut | |
| -tomy | process of incision, cutting into | |
| -tripsy | crushing | |
| -trophic | growth, development | |
| -trophy | growth, development |