| TERM | MEANING |
| kal/i | potassium |
| kary/o | nucleus |
| kel/o | tumor, fibrous growth |
| ken/o | empty |
| kerat/o | horny tissue, cornea |
| keton/o | ketones |
| kilo- | thousand (10³) |
| kinesi/o, -kinesia, -kinetic | movement |
| klept/o | theft, stealing |
| koil/o | hollow, concave, depressed |
| kraur/o | dry |
| kyph/o | humpback |