Cotemporaneous \Co*tem`po*ra"ne*ous\ (k?-t?m`p?-r?"n?-?s), a. [See {Contemporaneous}.] Living or being at the same time; contemporaneous. -- {Co*tem`po*ra"ne*ous*ly}, adv. -- {Co*tem`po*ra"ne*ous*ness}, n. [1913 Webster]