Source : Webster's Revised Unabridged Dictionary (1913)

   7. (Print.) A thick strip of metal less than type high, and
      as long as the width of a column or a page, -- used in
      spacing out pages and to separate display lines, etc.

   {Sea slug}. (Zo["o]l.)
      (a) Any nudibranch mollusk.
      (b) A holothurian.

   {Slug caterpillar}. Same as {Slugworm}.