Bis ‧ marck, Ot ‧ to von /ˈbɪzmɑːk $ -mɑːrk, ˈɒtəʊ vɒn $ ˈɑːtəʊ vɑːn/ BrE AmE
(1815–98) a German politician who was mainly responsible for joining all the separate German states together to form one country, and who then became ↑ chancellor of Germany. He was known as the ‘Iron Chancellor’.