is a section in a piece of music that has characteristics of a fugue, but is not a separate fugue movement itself. The term is also used to describe a fugue-like piece that lacks most of the usual contents of a fugue. [SE
a passage in a fugal style that characterizes a portion of a composition that is not a fugue. Fugal style means having a motive that functions as subject and is answered at another pitch level, in a variety of combinations.
Imitative, fugue-like passage in a non-fugal movement. It will suggest fugal practice but not necessarily follow through with all the technical demands of a true fugue. The finale of Mozart's "Jupiter" Symphony concludes with a brilliant fugato.