|Easton's Bible Dictionary|
Sons of thunder, a surname given by our Lord to James and John (Mark 3:17) on account of their fervid and impetuous temper (Luke 9:54).
Noah Webster's Dictionary
(n.) Any declamatory and vociferous preacher or orator.
Int. Standard Bible Encyclopedia
bo-a-nur'-jez (Boanerges; bene reghesh, "sons of thunder"): The surname bestowed by Jesus upon James and John, the sons of Zebedee, when they were ordained to the apostleship (Mark 3:17). See JAMES. It has also been regarded as an equivalent of the "Heavenly Twins," the Sons of Zeus or Thunder. According to this interpretation, the name Boanerges would represent the Dioscuri in some form or other of their varied presentation in the cults of the Mediterranean (compare Professor J. Rendel Harris in The Expositor, series vii, III, 146).
C. M. Kerr
Boanerges (1 Occurrence)
Mark 3:17 James the son of Zebedee; John, the brother of James, and he surnamed them Boanerges, which means, Sons of Thunder; (WEB KJV WEY ASV BBE DBY WBS YLT NAS NIV)