subsection

A part or division of a section: as, a subsection of a learned society; also, the act of subdividing a section.

In botany and zoology, a division of a genus of less extent than a section, yet above and including one or more species.

A defined part of a section.

A subpart of a legal document such as law.

a section of a section; a part of a part; i.e., a part of something already divided