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Medical Terminology
Prefixes, roots, suffixes
| Term | Definition |
|---|---|
| a, an | no, not |
| abdomen/o | abdomen |
| aden/o | gland |
| al | pertaining to |
| algia | pain |
| anter/o | front |
| ar | pertaining to |
| arthr/o | joint |
| aut | self |
| bi/o | life |
| bronch/o | bronchial tubes |
| cardi/o | heart |
| carcin/o | cancer, cancerous |
| cephal/o | head |
| cerebr/o | cerebrum |
| cervic/o | neck |
| chond/o | cartilage |
| crani/o | skull |
| crin/o | to secrete |
| cyst/o | urinary bladder |
| cyt/o | cell |
| derm/o | skin |
| dermat/o | skin |
| dia | complete |
| dys | bad, painful, difficult, abnormal |
| eal | pertaining to |
| ectomy | cutting out, removal, excision |
| elect/o | electricity |
| emia | blood condition |
| encephala/o | brain |
| endo | within |
| enter/o | intestines |
| epi | above, upon |
| epithelia | skin, surface tissue |
| erythr/o | red |
| esophag/o | esophagus |
| exo | outside |
| gastr/o | stomach |
| globin | protein |
| glyc/o | sugar |
| gnos/o | knowledge |
| gram | record |
| gynec/o | women, female |
| hem/o | blood |
| hemat/o | blood |
| hepat/o | liver |
| hyper | excessive, more than normal, too much |
| hypo | below, less than normal, under |
| ia | condition |
| ic | pertaining to |
| ior | pertaining to |
| ism | condition |
| itis | inflammation |
| lapar/o | abdomen |
| lapar/o | abdomen |
| laryng/o | larynx, voice box |
| later/o | side |
| leuk/o | white |
| logist | specialist in the study of |
| logy | study of |
| lymph/o | lymph |
| mediastin/o | mediastinum |
| mellitus | sweet |
| meter | measurement |
| nephr/o | Kidney |
| neur/o | nerve |
| oma | tumor or mass |
| onc/o | tumor |
| opthalm/o | eye |
| opsy | process of viewing |
| osis | abnormal condition |
| oste/o | bone |
| path/o | disease |
| pelv/o | pelvis |
| peri | surrounding |
| pro | before, forward |
| peritone/o | peritoneum |
| pharyng/o | larynx, throat |
| pleur/o | pleura |
| poster/o | back, behind |
| psych/o | mind |
| re | back |
| ren/o | kidney |
| retro | behind |
| rhin/o | nose |
| sacr/o | sacrum |
| sarc/o | flesh |
| scope | instrument to visually examine |
| scopy | process of visual examination |
| section | cutting into an organ |
| sis | state of |
| spin/o | spine |
| state | stands |
| sub | below, under |
| theli/o | nipple |
| thromb/o | clotting |
| thorac/o | chest |
| tomy | process of cutting into |
| trache/o | trachea |
| trans | across, through |
| um | structure |
| vascular | pertaining to blood vessels |
| vertebr/o | vertebra, backbone |
| y | condition |
| myo | muscle |
| sarco | muscle |
| chrom | color |
| angi/o | blood vessels |
| oto | ear |
| mamm/o | breast |
| ileo | small intestine |
| colo | large intestine |
| pneumo | lung |
| macro | large |
| micro | small |
| megalo, megaly | large. enlarged |
| tachy | fast, rapid |
| brady | slow, reduced |
| chloro | green |
| cyan | blue |
| ven/o | vein |
| intra | within |
| extra | outside |
| inter | between |
| echo | using ultrasonic waves (ultrasound) |
| mal | bad |
| coccg | coccyx, tailbone |
| amni/o | amnion (sac of fluid surrounding embryo) |
| angi/o | vessel (usually a blood vessel) |
| arteri/o | artery |
| myos/o | muscle |
| ten/o | tendon |
| tendin | tendon |
| cerebell/o | cerebellum |
| spondyl/o | backbone, vertebra |
| scrot/o | scrotal sac, scrotum |
| appendic/o | appendix |
| ligament/o | ligament |
| duoden/o | duodenum |
| ile/o | ileum (third part of small intestine) |
| ili/o | ilium (upper part of hip bone) |
| jejunum | jeujunum |
| or/o | mouth |
| o/o | egg |
| pancreas | pancreas |
| proct/o | anus and rectum |
| prostat/o | prostate gland |
| sigmoid/o | sigmoid colon |
| stomat/o | mouth |
| tonsil/o | tonsil |
| uro/o | urine, urinary tract |
| rrhea | discharge, flow |
| rrhage, rrhagia | excess flow of blood |
| rrhaphy | suture |
| ather/o | fatty plaque |
| axill/o | armpit |
| chem/o | drug, chemical |
| muscul/o | muscle |
| cholecyst/o | gallbladder |
| chron/o | time |
| cyan | blue |
| col/o | colon (large intestine) |
| chrom | color |
| cry/o | cold |
| bronch/i/o | bronchial tube |
| hyster/o | uterus |
| inguin/o | groin |
| isch/o | to hold back |
| mamm/o | breast |
| mast/o | breast |
| men/o | menses, menstruation, month |
| mening/o | meninges (membranes around the brain and spinal cord) |
| my/o | muscle |
| myel/o | spinal cord or bone marrow |
| necr/o | death |
| oophor/o | ovary |
| phleb/o | vein |
| sclerosis | hardening |
| pneumon/o | lung |
| pulmon/o | lung |
| radi/o | x-rays |
| salping/o | fallopian tube (uterine tube) |
| septic/o | pertaining to infection |
| ur/o | urine or urea, urinary tract |
| uria | condition of urine |
| ary | pertaining to |
| centesis | surgical puncture to remove fluid |
| plasty | surgical repair or surgical correction |
| stomy | opening |
| therapy | treatment |
| an/o | anus |
| lysis | loosening, breakdown, separation,destruction |
| poly | many |
| post | after |
| ab | away from |
| ad | toward, near |
| ana | up, apart |
| ante | before, forward |
| anti | against |
| bi | two |
| con | with, together |
| ec | out, outside |
| extra | outside of |
| hemi | half |
| meta | change, beyond |
| neo | new |
| para | beside, near, along side of |
| quadri | four |
| syn | with, together |
| tri | three |
| ultra | beyond |
| uni | one |
| esthesi/o | sensation |
| ger/o | old age |
| iatr/o | treatment |
| nos/o | disease |
| obstetr/o | midwife |
| odont | tooth |
| opt/o | eye |
| ortho/o | straight |
| ped/o | child |
| rect/o | rectum |
| rheumat/o | flow, fluid |
| aort/o | aorta |
| coron/o | heart |
| ven/o | vein |
| orch/i/o | testis |
| orchid/o | testis |
| parathyroid/o | parathyroid gland |
| pituitar/o | pituitary gland |
| thym/o | thymus gland |
| throaden/o | thyroid gland |
| balan/o | penis |
| ovari/o | ovary |
| medull/o | medulla oblongata |
| alveol/o | alveoli (air sacs) |
| epiglott/o | epiglottis |
| phren/o | diaphragm |
| aur/o | ear |
| cutane/o | skin |
| myring/o | eardrum |
| tympan/o | eardrum |
| ocul/o | eye |
| onych/o | nail |
| phak/o | lens of the eye |
| pil/o | hair |
| trich | hair |
| retin/o | retina |
| ungu/o | nail |
| pyel/o | renal pelvis |
| ureter/a | ureter |
| urethr/o | urethra |
| carp/o | carpals |
| cis/o | to cut |
| cost/o | rib |
| cele | hernia |
| calcane/o | calcaneus (heel bone) |
| capillar/o | capillary |
| dur/o | dura matter (outermost meningeal layer) |
| dactyl | fingers or toes |
| dent/i | tooth |
| ation | process, condition |
| cision | process of cutting |
| dipsia | thirst |
| gen | production, formation |
| emesis | vomiting |
| femor/o | femor |
| dynia | pain |
| fibr/o | fibrous tissue |
| fibul/o | fibula |
| genic | pertaining to producing, produced by |
| colp/o | vagina |
| vagin/o | vagina |
| metri/o | uterus or to measure |
| nat/i | birth |
| norm/o | rule, order |
| philia | attraction to |
| pexy | fixation (surgical) |
| poiesis | formation |
| plas/o | development, formation, growth |
| partum | birth |
| phasia | speech |
| plasia | formation, growth |
| phagia | eating |
| plasm | development, formation, growth |
| plegia | paralysis |
| pnea | breathing |
| prosth/o | artificial replacement |
| graphy | process of recording, to record |
| ine | pertaining to |
| lapse | slide |
| infra | below |
| leiomy/o | smooth muscle |
| lip/o | fat |
| listhesis | sliding |
| lith/o | stone |
| ist | specialist |
| motor | movement |
| mission | to send |
| mortem | death |
| supra | above |
| ptysis | spitting |
| tic | pertaining to |
| somatic | pertaining to the body |
| ous | pertaining to |
| stasis | control, stop, place, to stand |
| sym | with, together |
| son/o | sound |
| thyroid | thyroid |
| bari/o | weight |
| tension | pressure |
| thesis | put, place |
| top/o | to put, place |
| troph/o | development, nourishment |
| tibi/o | tibia |
| scapul/o | scapula |
| vesic/o | urinary bladder |
| acute | sharp, sudden, intense |
| ben | good |
| chronic | pertaining to time (persistent, long-lasting) |
| cuspid | pointed end |
| drome | occurring or running |
| ign | fire (eg. malignant: bad cancerous tumor spreads like fire) |
| inter | between |
| intra | within |
| mal | bad |
| megaly | enlargement |
| malaise | general feeling of discomfort |
| lethargy | fatigue, lack of energy |