What is the name for a text subdivision that is shorter than a chapter, but longer than a paragraph? They are always untitled (unlike chapters, which are at the very least called "Chapter 1", "2" etc), and denoted with either three asterisks, a longer blank space between paragraphs, or some other fancy marks.
(specifically, I'm not asking about name for the break itself, but for the section of text delimited by such breaks.)
