Definition of Great Hallel in English:

Great Hallel

noun

  • A poem or song of praise to God consisting of Psalm 136, and sometimes also part of Psalm 135, recited or sung among Jews on joyous occasions.

Origin

Mid 17th century; earliest use found in John Lightfoot (1602–1675), Hebraist and biblical scholar. After post-biblical Hebrew hallēl ha-gāḏōl (Tosefta, Ta'anit 3:5), denoting Psalm 136.