Easton's Bible Dictionary (1897)
, “kab”), occurs only in 2 Kings 6:25; a dry measure, the sixth part of a seah, and the eighteenth part of an ephah, equal to about two English quarts.
Smith's Bible Dictionary (1863)
[Measures]
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
CAB . See Measures.