(ex-cur-sus) 3 syllables

Definition

noun. 1 a digression or incidental excursion as in a narrative; 2 a detailed discussion of some point in a book especially one added as an appendix.

Example Sentence

The author's excursus lengthened an already long book.

Hear It! Say It! Write It!

excursus
Hear It! Say It! Write It!