|a. (of a random variable) having a probability distribution, usually with finite variance|
|b. (of a process) involving a random variable the successive values of which are not independent|
|c. (of a matrix) square with non-negative elements that add to unity in each row|
|2.||rare involving conjecture|
|[C17: from Greek stokhastikos capable of guessing, from stokhazesthai to aim at, conjecture, from stokhos a target]|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a gadget; dingus; thingumbob.|
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