D defs.my
Entry 4 senses Webster, 1913

Annulet

· An·nu·let · IPA /ˈæn.jʊ.lət/
01 n. A little ring.
  1. 1.
    A little ring.
  2. 2.
    A small, flat fillet, encircling a column, etc., used by itself, or with other moldings. It is used, several times repeated, under the Doric capital.(Arch.)
  3. 3.
    A little circle borne as a charge.(Her.)
  4. 4.
    A narrow circle of some distinct color on a surface or round an organ.(Zool.)