Correct spelling for the English word "most comminative" is [mˈə͡ʊst kəmˈɪnətˌɪv], [mˈəʊst kəmˈɪnətˌɪv], [m_ˈəʊ_s_t k_ə_m_ˈɪ_n_ə_t_ˌɪ_v] (IPA phonetic alphabet).
There seems to be an error in the term "most comminative" as it is not a recognized English word or phrase. It does not have a defined dictionary meaning. It is possible that you might have intended to ask for the definition of a similar-sounding word. "Comminative" is an adjective that describes something that has the ability to grind or reduce into small particles or powder. However, to provide a definition for "most comminative," it is necessary to assume it to be an altered version of "commutative."
"Commutative" is an adjective that characterizes an operation or process that can be applied in any order without changing the result. In mathematics and arithmetic, it specifically refers to operations like addition and multiplication, where the order of the numbers being operated on does not affect the outcome. For example, 2 + 3 is equal to 3 + 2, and 4 x 5 is equal to 5 x 4.
Therefore, if by "most comminative" you meant "most commutative," it would imply the highest degree or level of commutativity in a given operation or process. In this context, "most commutative" would refer to an operation where the order of elements or factors can be rearranged to achieve the same result with the greatest flexibility.