
• (n.) A small collar; specif., a woman`s collar of lace, fur, or other fancy material.
Found on 
http://thinkexist.com/dictionary/meaning/collarette/

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. ... Synonym: iris frill. ... (05 Mar 2000) ... 
Found on 
http://www.encyclo.co.uk/local/20973

(kol″әr-et´) a narrow rim of loosened keratin overhanging the periphery of a circumscribed skin lesion, attached to the normal surrounding skin. an irregular jagged line dividing the anterior surface of the iris into two regions, the pupillary zone and the ciliary zone. Biett col...
Found on 
http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: kol′er-et′ Definitions: 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. Synonyms: iris frill ...
Found on 
http://www.medilexicon.com/medicaldictionary.php?t=18899

See bib
Found on 
http://www.saffronart.com/sitepages/jewelry/glossary.aspx
  No exact match found.