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Word Roots/Combining
| Combining form | Definition |
|---|---|
| abdomin/o | abdomen |
| achill/o | Achilles' heel |
| acid /o | acid (pH) |
| bas/o | base (pH) |
| blephar/o | eyelid |
| bronch/o | bronchi |
| cac/o | bad, diseased |
| calc/i | calcium |
| cardi/o | heart |
| dacry/o | tear |
| dent/i | tooth |
| derm/o | skin |
| electr/o | electricity |
| enter/o | intestine |
| episi/o | vulva pudenda |
| fibr/o | fiber |
| fibul/o | fibula |
| format/o | formation |
| gastr/o | stomach |
| ger/o | old age |
| gingiv/o | gums |
| hemat/o | blood |
| hydr/o | water |
| hyster/o | womb, uterus |
| ichthy/o | fish (scaly) |
| ili/o | illium |
| immun/o | safe, protect |
| jejun/o | jejunum |
| kel/o | tumor |
| kerat/o | cornea |
| kyph/o | hump |
| labyrinth/o | maze |
| lacrim/o | tear |
| later/o | side |
| meat/o | passage |
| my/o | muscle |
| myring/o | membrane |
| neur/o | nerve |
| nas/o | nose |
| necr/o | death |
| ocul/o | eye |
| organ/o | organ |
| oste/o | bone |
| palat/o | palate |
| ped/i | child |
| pharmac/o | drug |
| rachi/o | spine |
| rhin/o | nose |
| rhythm/o | rhythm |
| seb/o | oil |
| somat/o | body |
| somn/o | sleep |
| ten/o | tendon |
| thalass/o | sea |
| thromb/o | blood clot |
| ul/o | scar |
| ungu/o | nail |
| uln/o | elbow |
| veni/o | vein |
| vitamin/o | vitamin |
| viscer/o | body organs |
| xen/o | alien, foreign |
| xiph/o | sword |
| xanth/o | yellow |
| zo/o | animal |
| zon/o | encircling area |
| zyg/o | joined |
| all/o | other |
| alveol/o | small hole, air sac |
| antr/o | cavity |