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alienism

American  
[eyl-yuh-niz-uhm, ey-lee-uh-] / ˈeɪl yəˌnɪz əm, ˈeɪ li ə- /

noun

  1. alienage.

alienism British  
/ ˈeɪlɪə-, ˈeɪljəˌnɪzəm /

noun

  1. obsolete the study and treatment of mental illness

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of alienism

An Americanism dating back to 1800–10; alien + -ism

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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