רָקָק, (preced. wds.) diluvium, pool, shallow. Sabb. XI, 4 אם היה רְקַק מים וכ׳ if there is a pool (on the shore), and the public road crosses it; וכמה הוא ר׳ מים, and how deep must it be to be called a pool? Erub. 43ᵃ במהלכת בר׳ when the ship moves in diluvial water. Ḥull. 27ᵇ מן הר׳ נבראו birds were created out of alluvial mud; Erub. 28ᵃ; M. Kat. 25ᵇ דגי ר׳, v. לִוְיָתָן; a. e.