What is "coix lacryma"

Job \Job\ (j[=o]b), n. The hero of the book of that name in the Old Testament; the prototypical patient man. Job's comforter.

1. A false friend; a tactless or malicious person who, under pretense of sympathy, insinuates rebukes.

2. A boil. [Colloq.]

   Job's news, bad news.
   --Carlyle.

   Job's tears (Bot.), a kind of grass ( Coix Lacryma), with hard, shining, pearly grains.