What is "cutter head"

Cutter \Cut"ter\ (k[u^]t"t[~e]r), n.

1. One who cuts; as, a stone cutter; a die cutter; esp., one who cuts out garments.

2. That which cuts; a machine or part of a machine, or a tool or instrument used for cutting, as that part of a mower which severs the stalk, or as a paper cutter.

3. A fore tooth; an incisor.
   --Ray.

4. (Naut.)

   1. A boat used by ships of war.

   2. A fast sailing vessel with one mast, rigged in most essentials like a sloop. A cutter is narrower and deeper than a sloop of the same length, and depends for stability on a deep keel, often heavily weighted with lead.

   3. In the United States, a sailing vessel with one mast and a bowsprit, setting one or two headsails. In Great Britain and Europe, a cutter sets two headsails, with or without a bowsprit.

   4. A small armed vessel, usually a steamer, in the revenue marine service; -- also called revenue cutter.

5. A small, light one-horse sleigh.

6. An officer in the exchequer who notes by cutting on the tallies the sums paid.

7. A ruffian; a bravo; a destroyer. [Obs.]

8. A kind of soft yellow brick, used for facework; -- so called from the facility with which it can be cut. Cutter bar. (Mach.)

   1. A bar which carries a cutter or cutting tool, as in a boring machine.

   2. The bar to which the triangular knives of a harvester are attached.

      Cutter head (Mach.), a rotating head, which itself forms a cutter, or a rotating stock to which cutters may be attached, as in a planing or matching machine.
      --Knight.