| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| tylosis1 |
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| SYLLABICATION: | ty·lo·sis |
| PRONUNCIATION: |  t -l  s s |
| NOUN: | Inflected forms: pl. ty·lo·ses (-s z)
1. Inflammation of the eyelids, characterized by thickening and hardening of the edges. 2. A thickening of the horny layer of the skin as a result of chronic pressure or friction. | | ETYMOLOGY: | New Latin tylsis, from Greek tulsis, a making callous : tulos, callus; see teu - in Appendix I + -sis, -osis.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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