Definitions of rubric:

• noun:   category name

  Example: "It is usually discussed under the rubric of `functional obesity'"

• noun:   a title or heading that is printed in red or in a special type
• noun:   an authoritative rule of conduct or procedure
• noun:   directions for the conduct of Christian church services (often printed in red in a prayer book)
• noun:   an explanation or definition of an obscure word in a text
• noun:   a heading that names a statute or legislative bill; may give a brief summary of the matters it deals with
• verb:   adorn with ruby red color