Meaning of ASSOCIATIVE in English
adj. 1 of or involving association. 2 Math. & Computing involving the condition that a group of quantities connected by operators (see OPERATOR 4) gives the same result whatever their grouping, as long as their order remains the same, e.g. (a x b) x c = a x (b x c).
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012