D defs.my
Entry 1 sense Webster, 1913

Ultra vires

/ŭl'-trə vīrz/ · Ul·tra vi·res · IPA
01 Beyond power; transcending authority; -- a phrase used frequently in relation to acts or enactments by corporations in excess of their char…
  1. 1.
    Beyond power; transcending authority; -- a phrase used frequently in relation to acts or enactments by corporations in excess of their chartered or statutory rights.