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MT Combining Forms
| Term | Definition |
|---|---|
| arthr/o | joint |
| hepat/o | liver |
| ven/o | vein |
| oste/o | bone |
| aden/o | gland |
| cyt/o | cell |
| epitheli/o | epithelium |
| fibr/o | fiber |
| hist/o | tissue |
| kary/o | nucleus |
| lip/o | fat |
| my/o | muscle |
| neur/o | nerve |
| organ/o | organ |
| sarc/o | flesh, connective tissue |
| system/o | system |
| viscer/o | internal organs |
| cancer/o, carcin/o | cancer |
| eti/o | cause (of disease) |
| gno/o | knowledge |
| iatr/o | physician, medicine, treatment |
| lei/o | smooth |
| onc/o | tumor, mass |
| path/o | disease |
| rhabd/o | rod-shaped, striated |
| somat/o | body |
| chlor/o | green |
| chrom/o | color |
| cyan/o | blue |
| erythr/o | red |
| leuk/o | white |
| melan/o | black |
| xanth/o | yellow |
| anter/o | front |
| caud/o | tail; downward |
| cephal/o | head; upward |
| dist/o | away (from the point of attachment of a body part) |
| dors/o | back |
| infer/o | below |
| later/o | side |
| medi/o | middle |
| poster/o | back, behind |
| proxim/o | near (the point of attachment of a body part) |
| super/o | above |
| ventr/o | belly; front |
| cutane/o, derm/o, dermat/o | skin |
| hidr/o | sweat |
| kerat/o | horny tissue (keratin), hard; also used to refer to the cornea of the eye |
| onchy/o, ungu/o | nail |
| seb/o | sebum (oil) |
| aut/o | self |
| bi/o | life |
| coni/o | dust |
| crypt/o | hidden |
| heter/o | other |
| myc/o | fungus |
| necr/o | death (cells, body) |
| pachy/o | thick |
| rhytid/o | wrinkles |
| staphyl/o | grapelike clusters |
| strept/o | twisted chains |
| xer/o | dry, dryness |
| adenoid/o | adenoids |
| alveol/o | alveolus |
| bronch/o, bronchi/o | bronchus |
| diaphragmat/o, phren/o | diaphragm |
| epiglott/o | epiglottis |
| laryng/o | larynx |
| lob/o | lobe |
| nas/o, rhin/o | nose |
| pharyng/o | pharynx |
| pleur/o | pleura |
| pneum/o, pneumat/o, pneumon/o | lung, air |
| pulmon/o | lung |
| sept/o | septum (wall off, fence) |
| sinus/o | sinus |
| thorac/o | thorax, chest, chest cavity |
| tonsill/o | tonsil |
| trache/o | trachea |
| atel/o | imperfect, incomplete |
| capn/o | carbon dioxide |
| hem/o, hemat/o | blood |
| muc/o | mucus |
| orth/o | straight |
| ox/i | oxygen |
| phon/o | sound, voice |
| py/o | pus |
| radi/o | x-rays, ionizing radidation |
| somn/o | sleep |
| son/o | sound |
| spir/o | breathe, breathing |
| tom/o | to cut, section, or slice |
| cyst/o, vesic/o | bladder, sac |
| glomerul/o | glomerulus |
| meat/o | meatus (opening) |
| nephr/o, ren/o | kidney |
| pyel/o | renal pelvis |
| ureter/o | ureter |
| urethr/o | urethra |
| albumin/o | albumin |
| azot/o | urea, nitrogen |
| blast/o | developing cell, germ cell |
| glyc/o, glycos/o | sugar |
| hydr/o | water |
| lith/o | stone, calculus |
| noct/i | night |
| olig/o | scanty, few |
| urin/o, ur/o | urine, urinary tract |
| cyst/o, vesic/o | bladder, sac |
| glomerul/o | glomerulus |
| meat/o | meatus (opening) |
| nephr/o, ren/o | kidney |
| pyel/o | renal pelvis |
| ureter/o | ureter |
| urethr/o | urethra |
| albumin/o | albumin |
| azot/o | urea, nitrogen |
| blast/o | developing cell, germ cell |
| glyc/o, glycos/o | sugar |
| hydr/o | water |
| lith/o | stone, calculus |
| noct/i | night |
| olig/o | scanty, few |
| urin/o, ur/o | urine, urinary tract |
| andr/o | male |
| balan/o | glans penis |
| epididym/o | epididymis |
| orchid/o, orchi/o, orch/o | testis, testicle |
| prostat/o | prostate gland |
| sperm/o, spermat/o | sperm, spermatozoon (pl. spermatozoa) |
| vas/o | vessel, duct (vas deferens in terms describing the male reproductive system) |
| vesicul/o | seminal vesicle(s) |
| arche/o | first, beginning |
| cervic/o, trachel/o | cervix |
| colp/o, vagin/o | vagina |
| endometri/o | endometrium |
| episi/o, vulv/o | vulva |
| gynec/o, gyn/o | woman |
| hymen/o | hymen |
| hyster/o, metr/o | uterus |
| mamm/o, mast/o | breast |
| men/o | menstruation |
| oophor/o | ovary |
| pelv/i | pelvis, pelvic bones, pelvic cavity |
| perine/o | perineum |
| salping/o | uterine/fallopian tube |
| amni/o, amnion/o | amnion; amniotic fluid |
| chori/o | chorion |
| embry/o | embryo |
| fet/o, fet/i | fetus, unborn offspring |
| gravid/o | pregnancy |
| lact/o | milk |
| nat/o | birth |
| omphal/o | umbilicus; navel |
| par/o, part/o | bear; give birth to; labor; childbirth |
| puerper/o | childbirth |
| cephal/o | head |
| esophag/o | esophagus |
| prim/i | first |
| pseud/o | false |
| pylor/o | pylorus; pyloric sphincter |
| terat/o | malformations |