Glossary Term Definition
A centered subhead, as opposed to a sidehead which is set to one side of the text column.
Definition
A centered subhead, as opposed to a sidehead, which is set to one side of the text column. Crossheads and sideheads are common methods of articulating the structure of a text.
Source
No access — Robert Bringhurst — p. 323:
A centered subhead.