• (n.) a short, condensed fugue.
(from the article `fugue`) A fughetta is a short fugue, with exposition plus only a few restatements of the subject. Fugato applies to music where only part of a fugue—usually ...
Fu·ghet'ta noun [ Italian ] (Mus.) a short, condensed fugue. Grove. 
In music a fughetta is a short, condensed fugue.
a short fugue or a fugal section in a composition.