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Medical Word Parts - Letter: d
| Term | Definition |
| dacry/o | tears |
| dactyl/o | fingers, toes |
| de- | lack of, without, less, down |
| deca- | ten |
| deci- | one tenth |
| dem/o | people, population |
| demi | half |
| dent/i | teeth |
| derm/o | skin |
| derma- | skin |
| dermat/o | skin |
| desicc/o | drying |
| -desis | bind, fixation |
| desm/o | ligament |
| dextr/o | right |
| di- | two, twice, double |
| dia- | complete, through |
| dif- | separation, taking apart, reversal |
| digit/o | finger, toe |
| dilat/o | enlarge, expand |
| dipl/o | double, two-sided |
| dips- | thirst |
| -dipsia | thirst |
| dis- | twice, apart, not |
| dist/o | distant, far |
| dolich/o | long |
| dolor/o | pain |
| dors/o | back of body |
| drom/o | running |
| -drome | running |
| duct/o | to lead |
| duoden/o | duodenum |
| dur/o | hard, dura mater |
| dynam/o | power, strength |
| -dynia | pain |
| dys- | bad, painful, abnormal |