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Medical Terminology
AAPC CIC Medical Terminology 2023 Roots
| Term | Definition |
|---|---|
| Derm/o | skin |
| Dermat/o | skin |
| Hidr/o | sweat, perspiration |
| Kerat/o | keratin, horny layer of the skin |
| Melan/o | dark, black, melanin |
| Onych/o | nail |
| Seb/o | Sebum, sebaceous gland |
| Trich/o | hair |
| Arthr/o | joint |
| Burs/o | bursa |
| Chondr/o | cartilage |
| Erg/o | work |
| Fasci/o | fascia |
| In/o | fiber |
| Kin/o | movement |
| Kinesi/o | movement |
| Muscul/o | muscle |
| My/o | muscle |
| Myel/o | bone marrow, spinal cord |
| Oste/o | bone |
| Synov/i | synovial fluid, joint, or membrane |
| Ten/o | tendon |
| Tendin/o | tendon |
| Ton/o | tone, pressure |
| Bronch/o | bronchus |
| Laryng/o | larynx |
| Pharyng/o | pharynx |
| Phren/o | diaphragm |
| Phrenic/o | phrenic nerve |
| Pleur/o | pleura |
| Pneumon/o | lung |
| Pneum/o | air, gas, respiration, lung |
| Pneumat/o | air, gas, respiration. lung |
| Pulm/o | lungs |
| Pulmon/o | lungs |
| Rhin/o | nose |
| Spir/o | breathing |
| Trache/o | trachea |
| Angi/o | vessel |
| Arter/o | artery |
| Arteri/o | artery |
| Aort/o | aorta |
| Arteriol/o | arteriole |
| Atri/o | atrium |
| Cardi/o | heart |
| Phleb/o | vein |
| Valv/o | valve |
| Valvul/o | valve |
| Vas/o | vessel, duct |
| Vasculo/o | vessel, duct |
| Ven/o | vein |
| Ven/i | vein |
| Ventricul/o | cavity, ventricle |
| Hem/o | blood |
| Hemato/o | blood |
| Immun/o | immunity, immune system |
| Leuk/o | white blood cell |
| Leukocyte/o | white blood cell |
| Lymph/o | lymph, lymphatic system |
| Lymphaden/o | lymph node |
| Lymphangi/o | lymphatic vessel |
| Splen/o | spleen |
| Thromb/o | blood clot |
| Thrombocyt/o | platelet, thrombocyte |
| Thym/o | thymus gland |
| Tonsil/o | tonsil |
| Erythr/o | red blood cell |
| Erythrocyt/o | red blood cell |
| Cali/o | calyx |
| Calic/o | calyx |
| Cyst/o | urinary bladder |
| Glomerul/o | glomerulus |
| Nephr/o | kidney |
| Pyel/o | renal pelvis |
| Ren/o | kidney |
| Ur/o | urine, urinary tract |
| Ureter/o | ureter |
| Urethr/o | urethra |
| Urin/o | urine |
| Vesic/o | urinary bladder |
| Bucc/o | cheek |
| Chol/e | bile, gall |
| Chol/o | bile, gall |
| Cholangi/o | bile duct |
| Cholecyst/o | gall bladder |
| Choledoch/o | common bile duct |
| Enter/o | intestine |
| Gastr/o | stomach |
| Gloss/o | tongue |
| Hepat/o | liver |
| Labi/o | lip |
| Lingu/o | tongue |
| Or/o | mouth |
| Proct/o | rectum and anus |
| Sial/o | saliva, salivary gland, salivary duct |
| Stoma, Stomat/o | mouth |
| Uvul/o | uvula |
| Epididym/o | Epididymis |
| Orchi/o | testis |
| Orchid/o | testis |
| Osche/o | scrotum |
| Prostat/o | prostate |
| Semin/o | semen |
| Sperm/o | semen, spermatozoa |
| Spermat/o | semen, spermatozoa |
| Test/o | testis, testicle |
| Vas/o | vas deferens, ductus deferens (also vessel, duct) |
| Vesicul/o | seminal vesicle |
| Colp/o | vagina |
| Episi/o | vulva |
| Gyn/o | woman |
| Gynec/o | woman |
| Hyster/o | uterus |
| Mast/o | breast, mammary gland |
| Men/o, Mens | menstruation |
| Metr/o | uterus |
| Metr/i | uterus |
| O/o | ovum, egg cell |
| Oophor/o | ovary |
| Ov/o | ovum, egg cell |
| Ovul/o | ovum, egg cell |
| Salping/o | oviduct, tube |
| Adren/o | adrenal glad, epinephrine |
| Adrenal/o | adrenal gland, epinephrine |
| Adrenocortic/o | adrenal cortex |
| Endocrine/o | endocrine glands, endocrine system |
| Hypophys/o | pituitary gland, hypophysis |
| Insul/o | pancreatic islets |
| Parathyr/o | parathyroid gland |
| Parathyroid/o | parathyroid gland |
| Pituitar/o | pituitary gland, hypophysis |
| Thyr/o | thyroid gland |
| Thyroid/o | thyroid gland |
| Cerebr/o | cerebrum |
| Cortic/o | cerebral cortex, outer potion |
| Encephal/o | brain |
| Gangli/o | ganglion |
| Ganglion/o | ganglion |
| Gli/o | neuroglia cells |
| Medull/o | medulla oblongata, medulla, middle, soft, marrow |
| Meningo/o | meninges |
| Meninge/o | meninges |
| Myel/o | spinal cord, bone marrow |
| Narc/o | stupor, numbness, sleep |
| Neur/o | nervous system, tissue, nerve |
| Neur/i | nervous system, tissue, nerve |
| Psych/o | mind |
| Radicul/o | spinal nerve root |
| Somn/o | sleep |
| Somn/i | sleep |
| Blephar/o | eyelid |
| Cochle/o | cochlea of inner ear |
| Corne/o | cornea |
| Dacryocyst/o | lacrimal sac |
| Lacrim/o | tear, lacrimal apparatus |
| Myring/o | tympanic membrane |
| Ot/o | ear |
| Phak/o | lens |
| Phac/o | lens |
| Retin/o | retina |
| Salping/o | tube, Eustacian tube |
| Scler/o | sclera |
| Tympan/o | tympanic cavity (middle ear), tympanic membrane |