The Collaborative International Dictionary of English v.0.48:
Cal \Cal\, n. (Cornish Mines)
   Wolfram, an ore of tungsten. --Simmonds.
   [1913 Webster]
V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
CAL
       Client Access License (Lotus, MS)
V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
CAL
       Computer Aided Logistics
V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
CAL
       Conversational Algebraic Language (JOSS)
V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
CAL
       Computer Assisted Learning
The Free On-line Dictionary of Computing (30 December 2018):
CAL
   1. Computer Assisted Learning.
   2. Course Author Language.