a title, heading, direction, or the like, in a manuscript, book, statute, etc., written or printed in red or otherwise distinguished from the rest of the text.
a direction for the conduct of divine service or the administration of the sacraments, inserted in liturgical books.
any established mode of conduct or procedure; protocol.
an explanatory comment; gloss.
a class or category
red ocher.
—adj.
written, inscribed in, or marked with or as with red; rubrical.