Structure
Quintain
From Latin quinque: five. Less common than the quatrain; the quintain's odd number creates an asymmetric, forward-moving energy.
Definition
A stanza of five lines, employed in the limerick, tanka, and various lyric forms.
Example
The limerick is an AABBA quintain; the envoi of a sestina is a three-line quintain; the cinquain is a syllabic form.