typhoid (adj.)

1800, literally "resembling typhus," from typhus + -oid. The noun is from 1861, a shortened form of typhoid fever (1845), so called because it originally was thought to be a variety of typhus. Typhoid Mary (1909) was Mary Mallon (d.1938), a typhoid carrier who worked as a cook and became notorious after it was learned she unwittingly had infected hundreds in U.S.

updated on February 23, 2014

Definitions of typhoid from WordNet

typhoid (n.)
serious infection marked by intestinal inflammation and ulceration; caused by Salmonella typhosa ingested with food or water;
Synonyms: typhoid fever / enteric fever
From, not affiliated with etymonline.