[ lee-uh n-tahy-uh-sis ]
/ ˌli ənˈtaɪ ə sɪs /

noun Pathology.

a lionlike facial distortion.
Also called le·on·ti·a·sis os·se·a [os-ee-uh] /ˈɒs i ə/. an overgrowth of the cranial and facial bones resulting in a lionlike appearance.

Nearby words

  1. leonis,
  2. leonora,
  3. leonore,
  4. leonov,
  5. leonov, leonid maksimovich,
  6. leontief,
  7. leontief, wassily,
  8. leontopodium,
  9. leontovich,
  10. leopard

Origin of leontiasis

< Greek leont-, stem of léōn lion + -iasis

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for leontiasis

  • The disease was called "leontiasis," and consisted of an enormous over-development of bone and skin on one side.

    A Labrador Doctor|Wilfred Thomason Grenfell

Medicine definitions for leontiasis


[ lē′ən-tīə-sĭs ]


The ridges and furrows on the forehead and cheeks of patients who have advanced lepromatous leprosy, giving a leonine appearance.leonine facies

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.