Alternative form of Ptolemaian

An impulsive, hasty, capricious person. / (obsolete) An insane person, a lunatic.

Angelica sinensis, a herb native to China, used in traditional Chinese medicine.

(medicine) A preparation of barium sulfate (a radioopaque compound) which the patient ingests for the purpose of producing clear radiographs of the esophagus, stomach, and duodenum.