pte·ryg·i·um
(tə-rĭj′ē-əm)n. pl. pte·ryg·i·ums or pte·ryg·i·a (-ē-ə)
An abnormal mass of tissue arising from the conjunctiva of the inner corner of the eye that obstructs vision by growing over the cornea.
[New Latin, from Greek pterugion, diminutive of pterux, pterug-, wing; see pterygoid.]
pte·ryg′i·al (-əl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
pterygium
(təˈrɪdʒɪəm)n, pl -gia (-dʒɪə)
1. (Pathology) pathol an abnormal tissue growth over the corner of the eye
2. (Medicine) pathol an abnormal growth of the cuticle over the nail plate
3. (Medicine) pathol a web of skin found on the neck or between digits
4. (Anatomy) anatomy obsolete any of various wing-like structures
5. (Zoology) entomol obsolete (in some lepidopterans) a lobe at the base of the hind wing
6. (Anatomy) anatomy a vertebrate fin
7. botany obsolete a petal in the shape of a wing
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pte•ryg•i•um
(təˈrɪdʒ i əm)n., pl. -ryg•i•ums, -ryg•i•a (-ˈrɪdʒ i ə)
an abnormal triangular mass of thickened conjunctiva extending over the cornea and interfering with vision.
[1650–60; < New Latin < Greek pterýgion little wing or fin =pteryg-, s. of ptéryx wing, fin]
pte•ryg′i•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  pterygium - either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea; it arises from irritation of the pingueculaconjunctiva - a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
pte·ryg·i·um
n. pterigión, membrana de tejido subconjuntivo que al extenderse de la conjuntiva hasta la córnea obstruye la visión.
English-Spanish Medical Dictionary © Farlex 2012
pterygium
n pterigión m, carnosidad f en el ojoEnglish-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.