leprosarium

From Medieval Latin leprōsārium, from leprōsus (“leprous”) + -ārium (“-ary: building related to”). Doublet of leprosery.

leprosarium (plural leprosariums or leprosaria)

1. An isolated building or community used to house lepers, usually in permanent quarantine from the rest of society.
   • 1971, José Barchilon, introduction to Madness & Civilization:

     In the middle of the twelfth century, France had more than 2,000 leprosariums

Although it is less common in general use than leper colony, medical and scholarly works often prefer the more clinical leprosarium. The location under discussion also influences English usage, with leprosaria more common in Spanish-speaking areas and leprosy village in Chinese ones.

• leprosaria, leprosy (obs.)

• See leprosery (buildings) and leper colony (communities)

• “leprosarium, n.”, in OED Online ⁠, Oxford, Oxfordshire: Oxford University Press, 2022.