The Collaborative International Dictionary of English v.0.48:

Dal \Dal\ (d[aum]l), n. [Hind.]
   Split pulse, esp. of Cajanus Indicus. [East Indies]
   [1913 Webster]

WordNet (r) 3.0 (2006):

dal
    n 1: a metric unit of volume or capacity equal to 10 liters
         [syn: dekaliter, dekalitre, decaliter, decalitre,
         dal, dkl]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

DAL
       Data Access Language (Apple)