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collarette

Pronunciation: kol'er-et'

Definition:

  1. The sinuous, scalloped line in the iris that divides the central pupillary zone from the peripheral ciliary zone and marks the embryonic site of the atrophied minor vascular circle of the iris.
  2. Brittle scales encircling eyelashes in staphylococcal blepharitis.

Synonym(s): iris frill

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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