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Medical Terminology
Prefix, Suffix, and Combining forms
| Term | Definition |
|---|---|
| a- | without |
| ab- | away from |
| abdomin/o | abdomen |
| -ac, -al, -ar, -ary, -eal, -ic, -ous, -tic | pertaining to |
| acous/o | hearing |
| acr/o | extremity or topmost |
| -acusis | hearing condition |
| ad- | to, toward, near |
| aden/o | gland |
| adip/o | fat |
| adren/o, adrenal/o | adrenal gland |
| aer/o | air, gas |
| albumin/o | protein |
| -algia | pain |
| alveol/o | alveolus (air sac) |
| ambi- | both |
| an- | without |
| an/o | anus |
| andr/o | male |
| angi/o | vessel |
| ankyl/o | crooked or stiff |
| ante- | before |
| anti- | against, opposed to |
| aort/o | aorta |
| appendic/o | appendix |
| aque/o | water |
| -arche | beginning |
| arteri/o | artery |
| arthr/o | joint |
| articul/o | joint |
| -ase | enzyme |
| -asthenia | weakness |
| ather/o | fatty paste |
| -ation | process |
| atri/o | atrium |
| audi/o | hearing |
| aur/i | ear |
| bacteri/o | bacteria |
| balan/o | glans penis |
| bi- | two, both |
| bil/i | bile |
| -blast, blast/o | germ or bud |
| blephar/o | eyelid |
| brachi/o | arm |
| brady- | slow |
| bronch/o, bronchi/o | bronchus (airway) |
| bronchiol/o | bronchiole (little airway) |
| bucc/o | cheek |
| capn/o, carb/o | carbon dioxide |
| carcin/o | cancer |
| cardi/o | heart |
| cata- | down |
| -cele | pouching, hernia |
| celi/o | abdomen |
| -centesis | puncture for aspiration |
| cephal/o | head |
| cerebell/o | cerebellum (little brain) |
| cerebr/o | cerebrum (largest part) |
| cerumin/o | wax |
| cervic/o | neck or cervix |
| cheil/o | lip |
| chol/e | bile |
| chondr/o | cartilage (gristle) |
| chrom/o, chromat/o | color |
| chyl/o | juice |
| circum- | around |
| col/o, colon/o | colon |
| colp/o | vagina (sheath) |
| con- | together, with |
| conjunctiv/o | conjunctiva (to join together) |
| contra- | against or opposed to |
| corne/o | cornea |
| coron/o | circle or crown |
| cost/o | rib |
| crani/o | skull |
| crin/o | to secrete |
| cutane/o | skin |
| cyan/o | blue |
| cyst/o | bladder, sac |
| cyt/o | cell |
| dacry/o | tear |
| dactyl/o | digit (fingers/toes) |
| de- | from, down, or not |
| dent/i | teeth |
| derm/o, dermat/o | skin |
| -desis | binding |
| dextr/o | right or on the right side |
| dia- | across, through |
| diaphor/o | profuse sweating |
| dips/o | thirst |
| dis- | separate from or apart |
| doch/o | duct |
| duoden/o | duodenum |
| -dynia | pain |
| dys- | painful, difficult, faulty |
| -e | noun |
| e-, ec-, ex- | out or away |
| -ectasis | expansion or dilation |
| ecto- | outside |
| -ectomy | excision, removal |
| -emesis | vomiting |
| -emia | blood condition |
| en- | within |
| encephal/o | entire brain |
| endo- | within |
| enter/o | small intestine |
| epi- | upon |
| epididym/o | epididymis |
| episi/o | vulva (covering) |
| erythr/o | red |
| esophag/o | esophagus |
| esthesi/o | sensation |
| eu- | good, normal |
| exo-, extra- | outside |
| fasci/o | fascia (a band) |
| femor/o | femur |
| fibr/o | fiber |
| gangli/o | ganglion (knot) |
| gastr/o | stomach |
| -gen, gen/o, -genesis | origin or production |
| gingiv/o | gum |
| gli/o | glue |
| glomerul/o | glomerulus (small ball) |
| gloss/o | tongue |
| glott/o | opening |
| gluc/o, glyc/o | sugar |
| gnos/o | knowing |
| -gram | record |
| -graph | instrument for recording |
| -graphy | process of recording |
| gynec/o | woman |
| hem/o, hemat/o | blood |
| hemi- | half |
| hepat/o, hepatic/o | liver |
| herni/o | hernia |
| hidr/o | sweat |
| hist/o, histi/o | tissue |
| hormon/o | hormone (an urging on) |
| hydr/o | water |
| hyper- | above, excessive |
| hypo- | below or deficient |
| hypn/o | sleep |
| hyster/o | uterus |
| -ia, -ism | condition of |
| -iasis | formation of or presence of |
| -iatrics, -iatry | treatment |
| -icle | small |
| ile/o | ileum |
| immun/o | safe |
| infra- | below or under |
| inguin/o | groin |
| inter- | between |
| intra- | within |
| ir/o, irid/o | iris (colored circle) |
| iso- | equal or like |
| -ist | one who specializes in |
| -itis | inflammation |
| -ium | structure or tissue |
| jejun/o | jejunum (empty) |
| kerat/o | hard or cornea |
| ket/o, keton/o | ketone bodies |
| kinesi/o | movement |
| kyph/o | humped-back |
| lacrim/o | tear |
| lact/o | milk |
| lapar/o | abdomen |
| laryng/o | larynx (voice box) |
| lei/o | smooth |
| -lepsy | seizure |
| leuc/o, leuk/o | white |
| lex/o | word or phrase |
| lingu/o | tongue |
| lip/o | fat |
| lith/o | stone |
| lob/o | lobe (a portion) |
| -logist | one who specializes in the study or treatment of |
| -logy | study of |
| lord/o | bent |
| lumb/o | loin (lower back) |
| lymph/o | clear fluid |
| -lysis | breaking down or dissolution |
| macro- | large, long |
| -malacia | softening |
| mamm/o | breast |
| -mania | abnormal impulse (attraction toward) |
| mast/o | breast |
| meat/o | opening |
| -megaly | enlargement |
| melan/o | black |
| men/o | menstruation |
| mening/o, meningi/o | meninges (membrane) |
| meso- | middle |
| meta- | beyond, after, change |
| -meter | instrument for measuring |
| metr/o | uterus |
| -metry | process of measuring |
| micro- | small |
| mono- | one |
| morph/o | form |
| multi- | many |
| muscul/o, my/o, myos/o | muscle |
| myc/o | fungus |
| myel/o | bone marrow, spinal cord |
| myring/o | eardrum |
| narc/o | stupor or sleep |
| nas/o | nose |
| nat/i | birth |
| necr/o | death |
| neo- | new |
| nephr/o | kidney |
| neur/o | nerve |
| ocul/o | eye |
| -oid | resembling |
| -ole | small |
| olig/o | few or deficient |
| -oma | tumor |
| onc/o | tumor or mass |
| onych/o | nail |
| oophor/o | ovary |
| ophthalm/o, opt/o | eye |
| -opia | condition of vision |
| orch/o, orchi/o, orchid/o | testis (testicle) |
| or/o | mouth |
| orth/o | straight, normal, correct |
| -osis | condition or increase |
| oste/o | bone |
| ot/o | ear |
| ovari/o | ovary |
| ov/i, ov/o | egg |
| ox/o | oxygen |
| pachy- | thick |
| palat/o | palate |
| pan- | all |
| pancreat/o | pancreas |
| para- | alongside of or abnorma |
| -paresis | slight paralysis |
| patell/o | knee cap |
| path/o | disease |
| pector/o | chest |
| ped/o | child or foot |
| pelv/i | hip bone |
| -penia | abnormal reduction |
| per- | through or by |
| peri- | around |
| perine/o | perineum |
| peritone/o | peritoneum |
| -pexy | suspension or fixation |
| phac/o, phak/o | lens (lentil) |
| phag/o | eat or swallow |
| pharyng/o | pharynx (throat) |
| phas/o | speech |
| -phil, -philia | attraction for |
| phleb/o | vein |
| phob/o | exaggerated fear or sensitivity |
| phon/o | voice or sound |
| phor/o | to carry or bear |
| phot/o | light |
| phren/o | diaphragm or mind |
| plas/o | formation |
| -plasia | formation |
| -plasty | surgical repair or reconstruction |
| -plegia | paralysis |
| pleur/o | pleura |
| -pnea | breathing |
| pneum/o, pneumon/o | air or lung |
| pod/o | foot |
| -poiesis | formation |
| poly- | many |
| post- | after or behind |
| pre- | before |
| presby/o | old age |
| pro- | before |
| proct/o | anus and rectum |
| prostat/o | prostate |
| psych/o | mind |
| -ptosis | falling or downward displacement |
| pulmon/o | lung |
| purpur/o | purple |
| py/o | pus |
| pyel/o | basin |
| pylor/o | pylorus (gatekeeper) |
| quadri- | four |
| radi/o | radius or radiation (xray) |
| re- | again or back |
| rect/o | rectum |
| ren/o | kidney |
| reticul/o | a net |
| retin/o | retina |
| retro- | backward or behind |
| rhabd/o | rod shaped or striated (skeletal) |
| rhin/o | nose |
| -rrhage, -rrhagia | to burst forth |
| -rrhaphy | suture |
| -rrhea | discharge |
| -rrhexis | rupture |
| salping/o | uterine (fallopian) tube or eustachian tube |
| sarc/o | flesh |
| schiz/o | split or division |
| scler/o | hard or sclera |
| scoli/o | twisted |
| -scope | instrument for examination |
| -scopy | process of examination |
| seb/o | sebum (oil) |
| semi- | half |
| sial/o | saliva |
| sigmoid/o | sigmoid colon |
| sinistr/o | left or on the left side |
| sinus/o | hollow cavity |
| somat/o | body |
| somn/o, somn/i | sleep |
| son/o | sound |
| -spasm | involuntary contraction |
| sperm/o, spermat/o | sperm (seed) |
| sphygm/o | pulse |
| spin/o | spine (thorn) |
| spir/o | breathing |
| splen/o | spleen |
| spondyl/o | vertebra |
| squam/o | scale |
| -stasis | stop or stand |
| steat/o | fat |
| sten/o | narrow |
| stere/o | 3D or solid |
| stern/o | sternum (breastbone) |
| steth/o | chest |
| stomat/o | mouth |
| -stomy | creation of an opening |
| sub- | below or under |
| super-, supra- | above or excessive |
| sym-, syn- | together or with |
| tachy- | fast |
| tax/o | order or coordination |
| ten/o, tend/o, tendin/o | tendon (to stretch) |
| test/o | testis (testicle) |
| thalam/o | thalamus (a room) |
| thorac/o | chest |
| thromb/o | clot |
| thym/o | thymus gland or mind |
| thyr/o, thyroid/o | thyroid gland (shield) |
| toc/o | labor |
| tom/o | to cut |
| -tomy | incision |
| ton/o | tone or tension |
| tonsill/o | tonsil |
| top/o | place |
| tox/o, toxic/o | poison |
| trache/o | trachea (windpipe) |
| trans- | across or through |
| tri- | three |
| trich/o | hair |
| -tripsy | crushing |
| troph/o | nourishment or development |
| tympan/o | eardrum |
| -ula, -ule | small |
| uln/o | ulna |
| ultra- | beyond or excessive |
| uni- | one |
| ur/o | urine |
| ureter/o | ureter |
| urethr/o | urethra |
| urin/o | urine |
| uter/o | uterus |
| uvul/o | uvula |
| vagin/o | vagina (sheath) |
| varic/o | swollen or twisted vein |
| vas/o, vascul/o | vessel |
| ven/o | vein |
| ventricul/o | ventricle (belly or pouch) |
| vertebr/o | vertebra |
| vesic/o, vesicul/o | bladder or sac |
| vitre/o | glassy |
| vulv/o | vulva (covering) |
| xanth/o | yellow |
| xer/o | dry |
| -y | condition or process of |
Created by:
kfoley3
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