| A | B |
|---|
| yperacidity n. | excessive acidity, especially in the stomach |
| hyperactive adj. | excessively active |
| hypercritical adj | excessively fault-finding |
| hypersensitive adj. | abnormally sensitive |
| hypertension n. | abnormally high blood pressure |
| hypodermic n. | small syringe with a hollow needle for making injections beneath the skin |
| hypoglycemic adj. | afflicted with abnormally low concentration of sugar in the blood |
| hyposensitize v. | make less sensitive |
| hypotension n. | abnormally low blood pressure |
| hypothermia n. | subnormal body temperature |
| subaqueous adj. | underwater |
| subcutaneous adj. | being, living, or introduced beneath the skin |
| sublethal adj. | not quite lethal (death-causing) |
| submarginal adj. | below minimum standards |
| subservient adj. | useful in an "under," or subordinate, capacity |
| supererogatory adj. | beyond the requirements of duty; performed to an extent not demanded |
| superficial adj. | over or on the surface only; not thorough |
| supernatural adj. | beyond what is natural or observable; not explainable by the laws of nature |
| supernumerary adj. | exceeding the standard or prescribed number; extra |
| supersonic adj. | having a speed beyond that of sound |
