DuckCorp Dico

Found 2 definitions

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Del \Del\, n. [See Deal, n.]
      Share; portion; part. [Obs.] --Chaucer.
      [1913 Webster]
   
                   
                 

2.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   del \del\ n. (Math.)
      a differential operator which, operating on a function of
      several variables, gives the sum of the partial derivatives
      of the function with respect to the three orthogonal spatial
      coordinates; -- also called the gradient or grad. It is
      represented by an inverted Greek capital delta ([nabla]), and
      is thus because of its shape also called nabla, meaning
      harp in Hebrew.
      [PJC]