| A | B |
| hypoallergenic | less likely to cause allergies |
| hypocrisy | the practice of being less than genuine; pretending to be someone you are not |
| hypodermic | under the skin |
| hypogeal | located below the surface of the ground |
| hypoglossal | under the tongue |
| hypoglycemia | an abnormally low level of sugar in the blood |
| hypothermia | a temperature below the normal body temperature; low body heat |
| hypothesis | an idea that is under investigation |
| hypotension | having blood pressure below what is normal |
| hypothyroidism | a disorder caused by a thyroid gland that is slower and less productive than normal |