A physician who has been accepted by a court of law as an expert on the mental competence of principals or witnesses appearing before it.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "alienist" in a sentence
"Bucke (1837-1902), an interesting character, rugged adventurer, medical doctor, and "alienist" (psychiatrist) helped set up an "insane asylum" in Canada with quite progressive "treatment" for its time."
""alienist" study, or giving us a fairly ordinary _étudiant_ and aspirant in letters."
"The weapons on the wall had been used in actual homicides and were provided by Chicago policemen; the skulls by an alienist at a nearby lunatic asylum, the blankets by a member who had acquired it while covering a battle between the army and the Sioux."