Easton's Bible Dictionary (1897)
Rock of God, chief of the family of the Merarites (Num. 3:35) at the time of the Exodus.
Smith's Bible Dictionary (1863)
(my rock is God) son of Abihail, and chief of the Merarite Levites at the time of the exodus. (Numbers 3:35)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
ZU'RIEL (my rock is God), a chief Levite in the time of the Exodus. Num 3:35.
Hitchcock's Bible Names (1869)
rock or strength of God