Class: noun | Syllables: mahr-juh-NAY-lee-uh

Definition: Marginalia is a plural noun that refers to notes or other marks written in the margins of a text, and to nonessential matters or items.

Example(s):
// The students loved flipping through their literature textbooks to find the marginalia left behind by former students.
// She found the book's treatment of not only the major events but also the marginalia of Scandinavian history fascinating.