Definition of "betony"

betony

/ˈbɛtəni/

noun
countable and uncountable, plural betonies
1. Any plant of the genus Stachys.
  1. Stachys officinalis (syn. Betonica officinalis, an herb used in traditional European medicine.
2. (Canada, US) Any plant of the genus Pedicularis (louseworts).