five-character eight-line regulated verse
A classical Chinese poetic form consisting of eight lines, each with five characters, following strict tonal and parallel structure rules. Used in both Chinese and Japanese literary traditions.
Du Fu is known as a master of five-character eight-line regulated verse.
七言律詩 has seven characters per line instead of five.
五言絶句 is a shorter form with only four lines, while 五言律詩 has eight lines.
From Chinese 五言律詩 (wǔyán lǜshī), literally 'five-character regulated verse'. The term is used in Japanese to refer to the same classical Chinese poetic form.