defenseman

/D IH0 F EH1 N S M AH0 N/
noun
  1. 1

    In ice hockey and lacrosse, a player position with a primary responsibility to prevent the opposing team from scoring goals; same as defender in many other ballgames.

Source: https://en.wiktionary.org/wiki/defenceman, https://en.wiktionary.org/wiki/defenseman