The Collaborative International Dictionary of English v.0.48:

Meal \Meal\, n. [OE. mele, AS. melu, melo; akin to D. meel, G.
   mehl, OHG. melo, Icel. mj["o]l, SW. mj["o]l, Dan. meel, also
   to D. malen to grind, G. mahlen, OHG., OS., & Goth. malan,
   Icel. mala, W. malu, L. molere, Gr. my`lh mill, and E. mill.
   [root]108. Cf. Mill, Mold soil, Mole an animal,
   Immolate, Molar.]
   [1913 Webster]
   1. Grain (esp. maize, rye, or oats) that is coarsely ground
      and unbolted; also, a kind of flour made from beans,
      pease, etc.; sometimes, any flour, esp. if coarse.
      [1913 Webster]

   2. Any substance that is coarsely pulverized like meal, but
      not granulated.
      [1913 Webster]

   Meal beetle (Zool.), the adult of the meal worm. See Meal
      worm, below.

   Meal moth (Zool.), a lepidopterous insect (Asopia
      farinalis), the larvae of which feed upon meal, flour,
      etc.

   Meal worm (Zool.), the larva of a beetle (Tenebrio
      molitor) which infests granaries, bakehouses, etc., and
      is very injurious to flour and meal.
      [1913 Webster]