coetaneous

from WordNet (r) 3.0 (2006)

coetaneous
    adj 1: of the same period [syn: {coetaneous}, {coeval},
           {contemporaneous}]

from The Collaborative International Dictionary of English v.0.48

Coetaneous \Co`e*ta"ne*ous\, a. [L. coaetaneus; co- + aetas
   age.]
   Of the same age; beginning to exist at the same time;
   contemporaneous. -- {Co`e*ta"ne*ous*ly}, adv.
   [1913 Webster]

         And all [members of the body] are coetaneous.
                                                  --Bentley.
   [1913 Webster]