Acetanilide: Acetanilide,, synthetic organic compound introduced in therapy in 1886 as a fever-reducing drug. Its effectiveness in relieving pain was discovered soon thereafter, and it
MidÂ·west. A region of the north-central United States around the Great Lakes and the upper Mississippi Valley. It is generally considered to include Ohio, Indiana, Illinois, Michigan, Wisconsin, Minnesota, Iowa, Missouri, Kansas, and Nebraska. The area is known for its rich farmlands and highly industrialized centers.
Midwestern United States. The Midwestern United States (or Midwest) is a name for the north-central states of the United States of America. The states that are part of the Midwest are: Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Ohio, and Wisconsin. The word Midwest has been in common use since the late 19th century.