decennial

/dษชหˆsษ›nษชษ™ษซ/

IPA: /D AH0 S EH1 N IY0 AH0 L/

noun
  1. 1

    The tenth anniversary of an event or happening.

adjective
  1. 1

    Occurring every ten years.

  2. 2

    Of or related to a ten-year period, as a term of office.

Source: https://en.wiktionary.org/wiki/decennial