ru ‧ bric /ˈruːbrɪk/ BrE AmE noun [countable]
[ Date: 1200-1300 ; Language: Old French ; Origin: rubrique 'words written in red' , from Latin rubrica , from ruber 'red' ]
1 . formal a set of instructions or an explanation in a book, examination paper etc
2 . a title under which particular things are mentioned or discussed:
The names were listed under the rubric ‘Contributors’.