D defs.my
Entry 3 senses Webster, 1913

Stochastic

/(stō̇*kăs"tĭk)/ · Sto·chas·tic · IPA /stəˈkæstɪk/
01 a. Conjectural; able to conjecture.
  1. 1.
    Conjectural; able to conjecture.[Obs.]
  2. 2.
    random; chance; involving probability; opposite of deterministic.
  3. 3.
    of or pertaining to a process in which a series of calculations, selections, or observations are made, each one being randomly determined as a sample from a probability distribution.(Statistics)