TISSUAL Meaning of TISSUAL in English ˈtish(y)əwəl, ˈti(ˌ)shüəl, chiefly Brit ˈtisyəwəl or ˈti(ˌ)syüəl adjective : of or relating to tissue Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012