Source : Webster's Revised Unabridged Dictionary (1913)

Deckle edge \Dec"kle edge`\
   The rough, untrimmed edge of paper left by the deckle; also,
   a rough edge in imitation of this.

Source : WordNet®

deckle edge
     n : rough edge left by a deckle on handmade paper or produced
         artificially on machine-made paper [syn: {deckle}]