Easton's Bible Dictionary: M. G. Easton, M.A., D.D.
(Heb.
galgal; rendered "wheel" in
Ps. 83:13, and "a rolling thing" in
Isa. 17:13; R.V. in both, "whirling dust"). This word has been supposed to mean the wild artichoke, which assumes the form of a globe, and in autumn breaks away from its roots, and is rolled about by the wind in some places in great numbers.