[ 'eɪlɪət(ə)ri , 'al- ]
(also aleatoric )
■ adjective
1》 depending on the throw of a die or on chance.
2》 relating to or denoting music or other forms of art involving elements of random choice during their composition or performance.
Origin
C17: from L. aleatorius , from aleator 'dice player', from alea 'die'.