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Combining Forms
Combining forms for medical terminology
| Term | Definition |
|---|---|
| Cardi/o | heart |
| Crin/o | to secrete |
| Dermat/o | skin |
| Esthesi/o | feeling/sensation |
| Gastr/o | stomach |
| Enter/o | intestines |
| Ger/a,Ger/o,Geront/o | elderly |
| Gynec/o | female |
| Immun/o | immune |
| Ne/o | new |
| Nat/o | birth |
| Obstetr/o | midwife |
| Neur/o | nerve |
| Ophthalm/o | eye |
| Orth/o | straight |
| Ped/o | child;sometimes foot |
| Onc/o | tumor |
| Chir/o | hand |
| Radi/o | radiation; sometimes radius |
| Rheumat/o | rheumatism |
| Rhin/o | nose |
| Ot/o | ear |
| Laryng/o | voice box |
| Psych/o | mind |
| Path/o | disease |
| Ur/o | urinary tract; sometimes urine |
| Aden/o | gland |
| Angi/o | vessel |
| Append/o, Appendic/o | appendix |
| Bi/o | life or living |
| Blephar/o | eyelid |
| Cerebr/o | brain |
| Encephal/o | brain |
| Col/o | colon (large intestines) |
| Cutane/o | skin |
| Faci/o | face |
| Hepat/o | liver |
| Mamm/o, Mast/o | breast |
| Muscul/o, my/o | muscle |
| Myel/o | bone marrow or spinal cord |
| Oste/o | bone |
| Pulm/o, Pulmon/o | lungs |
| Pneumon/o | lungs |
| Pneum/o | lungs; sometimes air or gas |
| Tonsill/o | tonsil |
| Trache/o | trachea (windpipe) |
| Vas/o | vessel; ductus deferens |
| Adip/o, Lip/o | fat |
| Amyl/o | starch |
| Glyc/o | sugar |
| Hemat/o | blood |
| Lact/o | milk |
| Lith/o | stone |
| Muc/o | mucus |
| Prote/o, Protein/o | protein |
| Pyr/o | fire |
| Alb/o, Albin/o, Leuk/o, Leuc/o | white |
| Chlor/o | green |
| Cyan/o | blue |
| Erythr/o | red |
| Melan/o | black |
| Xanth/o | yellow |
| Cyt/o | cell |
| Gen/o | beginning; origin; genes |
| Gram/o | record |
| Kinesi/o | movement |
| Phag/o | eat; ingest; swallowing |
| Aer/o | air |
| Blast/o | embryonic form |
| Cephal/o | head |
| Cry/o | cold |
| Crypt/o | hidden |
| Dips/o | thirst |
| Fibr/o | fiber |
| Hist/o | tissue |
| Myc/o | fungus |
| Narc/o | stupor |
| Necr/o | death |
| Phon/o | voice |
| Phot/o | light |
| Py/o | pus |
| Optic/o, Opt/o | vision |
| Therm/o | heat |
| Top/o | position; place |
| Ech/o, Son/o | sound |
| Fluor/o | emitting/reflecting light |
| Tom/o | to cut |
| Pharmac/o, Pharmaceuti/o | drugs; medicine |
| Algesi/o | sensitivity to pain |
| Chem/o | chemical |
| Therapeut/o | treatment |
| Toxic/o, Tox/o | poison |
| Home/o | sameness |
| Anter/o | anterior; toward the front |
| Later/o | toward the side; farther from the mid line of the body structure |
| Medi/o | middle; nearer the middle |
| Ventr/o | belly side |
| Poster/o | toward the back; situated behind |
| Dors/o | directed toward; situated behind on the backside |
| Super/o | excessive; above |
| Infer/o | lowermost; below |
| Proxim/o | nearer the origin or point of attachment |
| Dist/o | far; distant from the origin or point of attachment |
| Caud/o | tail; in a posterior direction |
| Tel/e | distant |
| Thorac/o | chest |
| Periton/o | membrane that lines the abdominal cavity |
| Abdomin/o | abdomen |
| Crani/o | skull |
| Pelv/i | pelvis |
| Spin/o | spine |
| Arc/o | extremities (arms/legs) |
| Cyst/o | bladder; sac |
| Dactyl/o | digit (toe/finger/both) |
| Lapar/o | abdominal wall |
| Omphal/o | naval; umbilicus |
| Onych/o | nail |
| Femor/o | thigh bone |
| Inguin/o | groin |
| Spermat/o | sperm |
| Umbilic/o | naval |
| Hidr/o | perspiration |
| Hydr/o | water |
| Sial/o | saliva; saliva gland |
| Lacrim/o, Dacry/o | tear; tearing; cry |
| Coagul/o | blood clotting |
| Ankyl/o | stiff |
| Arthr/o, Articul/o | articulation, joint |
| Burs/o | sacs of fluid located in areas of friction, especially in the joints |
| Calcane/o | heel bone (calcaneus) |
| Carp/o | wrist (carpus) |
| Cellul/o | little cell or compartment |
| Cervic/o | neck |
| Chondr/o | cartilage |
| Clavicul/o | collarbone (clavicle) |
| Coccyg/o | tailbone (coccyx) |
| Cost/o | rib (costae) |
| Crani/o | skull (cranium) |
| Femor/o | thigh bone (femur) |
| Fibul/o | the smaller or the two lower leg bones (fibula) |
| Humer/o | the upper arm bone (humerus) |
| Ili/o | the uppermost and widest of the 3 bones that make up each half of the pelvis (ilium) |
| Ischi/o | the lowest of the 3 major bones that make up each of half of the pelvis (ischium) |
| Lumb/o | lower back |
| Metacarp/o | bones of the hand (metacarpals) |
| Metatars/o | bones of the feet (metatarsals) |
| Patell/o | kneecap (patella) |
| Pelv/i | the skeletal section between the abdomen and thighs (pelvis) |
| Phalang/o | bones of the fingers or toes (phalanges: plural, phalanx: singular) |
| Pub/o | one of the tree sections of the hipbone (pubis) |
| Rachi/o, spin/o | spine |
| Radi/o | one of the two large bones of the forearm; in line with thumb (radius) |
| Sacr/o | lower portion of the spine; between lumbar and tailbone (sacrum) |
| Scapul/o | shoulder blade (scapula) |
| Skelet/o | skeleton |
| Spondyl/o | vertebra |
| Stern/o | breastbone (sternum) |
| Tars/o | ankle bones (tarsals) |
| Ten/o, Tend/o, Tendin/o | tendon |
| Tibi/o | shin bone (tibia) |
| Uln/o | one of the two long bones in the forearm; in line with pinkie (ulna) |
| Adenoid/o | pharyngeal tonsils; resembling gland |
| Ventricul/o | little belly; cavity; ventricle |
| Viscer/o | internal organs |
| Venul/o | small vein |
| Ven/o | vein |
| Vascul/o | vessel |
| Thromb/o | clot (thrombus) |
| Tens/o | pressure |
| Sten/o | narrowness; constriction |
| Splen/o | spleen |
| Sept/o | wall; partition |
| Scler/o | hardening |
| Phleb/o | vein |
| Pharyng/o | throat |
| Lymph/o, Lymphat/o | lymphatics |
| Isch/o | deficiency; blockage |
| Embol/o | material that travels through blood vessel (embolus) |
| Coron/o | encircling in the manner of a crown |
| Ather/o | yellow fatty plaque |
| Arteriol/o | small artery (arteriole) |
| Aort/o | largest artery in the body (aorta) |
| Urin/o | urine/urination |
| Albumin/o | a type of protein |
| Ureter/o | tube through which urine passes from each kidney |
| Urethr/o | tubular passage by which urine is discharged from the bladder to the outside |
| Ren/o, Nephr/o | kidney |
| Pyel/o | renal pelvis; funnel-shaped structure located in the center of each kidney; collects urine |
| Glomerul/o | the cluster of blood vessels that acts as the filtering structure of the kidney |
| Corpor/o | body |
| Olig/o | few scanty |
| Prostat/o | male reproductive gland (prostate) |
| An/o | anus |
| Bil/i | digestive juice that aids digestion of fats |
| Cec/o | blind pouch at beginning of large intestine (cecum) |
| Cheil/o | lips |
| Chol/e | gall or bile |
| Cholecyst/o | gallbladder |
| Choledoch/o | common bile duct |
| Cirrh/o | orange-yellow |
| Dent/I, Dent/o | teeth |
| Diverticul/o | small sac or pouch in wall of large organs (diverticulum) |
| Duoden/o | first division of small intestine (duodenum) |
| Esophag/o | tube that carries food to stomach (esophagus) |
| Gingiv/o | gums |
| Gloss/o | tongue |
| Hemorrhoid/o | enlarged veins in anus (hemorrhoid) |
| Ile/o | third division of small intestine (ileum) |
| Insulin/o | hormone produced by pancreas (insulin) |
| Intesin/o | intestines |
| Jejun/o | second division of small intestine (jejunum) |
| Lapar/o | abdominal wall |
| Lingu/o | tongue |
| Mandibul/o | lower jaw (mandible) |
| Odont/o | teeth |
| Or/o | mouth |
| Pancreat/o | secretes digestive enzymes & hormones (pancreas) |
| Proct/o | anus, rectum |
| Rect/o | rectum |
| Sial/o | saliva, salivary gland |
| Sigmoid/o | s-shaped portion of large intestine (sigmoid colon) |
| Stomat/o | mouth |
| Vag/o | vagus nerve |
| Viscer/o | large internal organs within abdominal cavity |
| Alveol/o | one of a cluster of small air sacs at the end of a bronchiole (alveolus) |
| Atel/o | imperfect |
| Bronch/o | tubes that branch right and left off the trachea (bronchus) |
| Bronchi/o | tubes that branch right and left off the trachea (bronchus) |
| Bronchiol/o | small tubes that branch off from the bronchi (bronchiole) |
| Coni/o | dust |
| Epiglott/o | lid like structure that covers the larynx during swallowing (epiglottis) |
| Lob/o | lobe |
| Ox/o | oxygen |
| Phren/o | diaphragm, mind |
| Pleur/o | membrane that surrounds each lung and lines the walls of the chest cavity |
| Silic/o | dust of stone, sand quartz, or flint that contains silica |
| Spir/o | to breathe |
| Adip/o | fat |
| Axill/o | armpit |
| Bacter/i, Bacteri/o | bacteria |
| Erythemat/o | redness |
| Follicul/o | follicle |
| Ichthy/o | fish |
| Kerat/o | horny |
| Lip/o | fat |
| Onych/o | nail |
| Pil/o | hair |
| Seb/o | sebum |
| Seps/o | infection |
| Sept/o | infection |
| Trich/o | hair |
| Ungu/o | nail |
| Xer/o | dry |