The Collaborative International Dictionary of English v.0.48:

deterministic \de*ter`min*ist"ic\, a.
   1. of or pertaining to determinism; as, deterministic
      theories.
      [PJC]

   2. causally determined and not subject to random chance.
      [PJC]

WordNet (r) 3.0 (2006):

deterministic
    adj 1: an inevitable consequence of antecedent sufficient causes

The Free On-line Dictionary of Computing (30 December 2018):

deterministic

   1.  Describes a system whose time evolution can
   be predicted exactly.

   Contrast probabilistic.

   2.  Describes an algorithm in which the correct
   next step depends only on the current state.  This contrasts
   with an algorithm involving backtracking where at each point
   there may be several possible actions and no way to chose
   between them except by trying each one and backtracking if it
   fails.

   (1995-09-22)