Assessorial.
Of or pertaining to an accessory, e.g. to a crime.
Of or relating to an accession.
An assessorial charge.
that explains or qualifies something
that is incidental
using, containing, or within parenthesis
A word or phrase within parentheses.
A descriptor or modifier enclosed within parentheses and put, indented, in a line of dialogue to describe how it should be acted or directed onscreen.