What does "antanaclasis" mean?

Antanaclasis: (a) A figure which consists in repeating the same word in a different sense; as, Learn some craft when young, that when old you may live without craft. (b) A repetition of words beginning a sentence, after a long parenthesis; as, Shall that heart (which not only feels them, but which has all motions of life placed in them), shall that heart, etc.