Source : Webster's Revised Unabridged Dictionary (1913)

Raker \Rak"er\, n. [See 1st {Rake}.]
   1. One who, or that which, rakes; as:
      (a) A person who uses a rake.
      (b) A machine for raking grain or hay by horse or other
          power.
      (c) A gun so placed as to rake an enemy's ship.

   2. (Zo["o]l.) See {Gill rakers}, under 1st {Gill}.