| A | B |
| homocentric | sharing the same center point |
| homogeneous | similar in characteristics |
| homophone | words that sound the same(but have different meanings) |
| homograph | words that are spelled the same(but have different meanings or pronunciations |
| heterodontal | having a variety of types of teeth |
| heterodox | different beliefs |
| heterotroph | an organism that relies on different sources of food |
| heteromorphic | having a variety of shapes or forms |
| hypertension | high blood pressure |
| hyperthermia | elevated temperature; fever |
| hyperbole | an exaggeration; saying something beyond what is possible |
| hyperextend | to stretch or bend beyond the normal range |
| hypodermic | beneath the skin |
| hypoxia | lack of oxygen |
| hypoglycemic | low blood sugar level |
| hypothesis | the underlying position or idea |
| neolithic | new stone age |
| neoclassical | new imitations of Greek or Roman architecture or style |
| neologism | to create or coin new words |
| neophilia | a love of new things |