viscus (viscera). An internal organ especially of the abdominal cavity.
W
Wart. A circumscribed hypertrophy of the papillae of the corium covered by thickened epidermis.
Wassermann’s test. A diagnostic test for syphilis, based upon the theory of complement fixation.
wen. A sebaceous cyst, especially one occurring on the scalp.
whitlow. See paronychia.
X
xeroderma. Roughening of the skin from diminished secretion.
X-rays. The ethereal waves or pulsations from a Crookes’ tube from the bombardment of the anode target with the cathode rays.