psilosis

from The Century Dictionary.

• noun A disease, which occurs chiefly in the tropics, marked by fullness and pain in the abdomen, diarrhea, vomiting, a red tongue covered with whitish points, and emaciation. Also called sprew and aphthæ tropicæ.
• noun Same as alopecia.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The sound change by which Greek lost the consonant sound /h/ during antiquity.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a chronic disorder that occurs in tropical and non-tropical forms and in both children and adults; nutrients are not absorbed; symptoms include foul-smelling diarrhea and emaciation
• noun falling out of hair