chapter
a numbered reference to that part of a Parliamentary session which relates to a specified Act of Parliament, so each Act of Parliament will have a chapter number in the statute book.Collins Dictionary of Law © W.J. Stewart, 2006
CHAPTER, eccl. law. A congregation of clergymen. Such an assembly is termed
capitulum, which signifies a little head it being a kind of head, not only
to govern the diocese in the vacation of the bishopric, but also for other
purposes. Co. Litt. 103.
A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.