from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Either the third or the fourth month of the year in the Islamic calendar. See Table at calendar.
  • Rabi, Isidor Isaac 1898-1988. Austrian-born American physicist. He won a 1944 Nobel Prize for his study of magnetic movement of atomic particles.

from The Century Dictionary and Cyclopedia

  • n. An obsolete spelling of rabbi.
  • n. The great grain-crop of Hindustan, consisting of wheat, barley, oats, and millet.


Arabic rabī', spring, fourth; see rbʿ in Semitic roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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