Correct spelling for the English word "seamanwomen" is [sˈiːmɐnwˌɪmɪn], [sˈiːmɐnwˌɪmɪn], [s_ˈiː_m_ɐ_n_w_ˌɪ_m_ɪ_n] (IPA phonetic alphabet).
The word seamanwomen does not have an established etymology as it appears to be a nonexistent or invented term. It seems to combine the words seaman and women, suggesting a female counterpart to a seaman or sailor. However, the actual term used to refer to female sailors is seawoman or sailorwoman.