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 peel of sugar in the blood; a blood sugar level below what is needed for healthy blood

 

hypotension:  having blood pressure below what is normal

 

hypothermia:  a temperature below the normal body temperature; low body heat

 

hypothesis:  an idea that is under investigation

 

hypothyroidism:  a disorder caused by a thyroid gland that is slower and less productive than normal