附记,补说,附录
Excursus \Ex*cur"sus\, n. [L., fr. excurrere, excursum. See {Excurrent}.] A dissertation or digression appended to a work, and containing a more extended exposition of some important point or topic.
excursus n : a message that departs from the main subject [syn: {digression}, {aside}, {divagation}, {parenthesis}]