Annulets, in architecture, are small
square components in the Doric
capital, under the quarter-round. They are also called fillets
or listels.
An annulet is also a narrow flat moulding, common in other parts
of a column, viz. the
bases, etc, as well as the capital. It is so called, because it
encompasses the column round. In this sense, annulet is frequently
used for baguette or
little astragal.