Outer structure of the ear, consisting of the fleshy auricle and the canal (external acoustic meatus) leading to the tympanic...

Substance that increases the size, volume, or quantity of another substance (e.g., plasma expander, used to add to blood plasma...

Extreme fatigue; complete lack of energy.  

Malignant tumor developing in bone marrow, usually in long bones or the pelvis; it occurs most often in adolescent boys...

Presence of normal amounts of carbon dioxide in the blood.  

Highly flammable topical anesthetic used in the treatment of skin irritations and in minor skin surgery. Adverse effects include pain...

Anticonvulsant, used to treat petit mal epilepsy. Adverse effects include blood abnormalities and gastrointestinal disturbances.  

Cavity in the ethmoid bone behind the bridge of the nose.  

Diuretic used to treat edema. Adverse effects include muscle weakness, electrolyte imbalance, and hearing disorders.  

Special optical instrument used to examine the esophagus, to dilate the canal, or to remove a foreign object or material...