collarette

noun6

1. •
   A small collar, especially as a kind of necklace of lace, fur etc. for women; a ruff

   • Work the 2 stitches in looped knitting; the last ten rows make a kind of gore on the lower edge of the collarette. — 2013
2. •
   A small collar of inner petals or leaf-like extensions to the stem.

   • There are no recurved strap-shaped little flowers; collarette of the composite flower with scales arranged in several rows ( Fig . TVU ) — 1917
3. •
   The jagged circle in the mid-diameter of the iris, separating the darker shade of the iris from the lighter shade of the iris.

   • The edge of the pupil is soft and seems to dissolve into the collarette rather than stand apart from it. — 2015
4. •
   The rim of loosened keratin surrounding a skin lesion.

   • Occasionally, scaling may be diffuse and irregular instead of collarette of fragments of scales that from the border into the center of the lesion, like a curtain — 2021
5. •
   A type of dahlia having a small collar of short inner petals.

   • The Collarette dahlia is a very novel and distinct type. — 1914
6. •
   An advertising card fitted around the neck of a bottle.