What is "quatrains"

Usage examples of "quatrains".

The poet himself was aware of the fact at once, and stated it, perhaps not too modestly, in countless quatrains and couplets, which were not read, or, if read, were not much regarded at the moment.

Numbers followed by an asterisk indicate those quatrains Sadiq Hedayat considered most likely to be doubtful products of Omar Khayyam.