English edit

Etymology edit

infrasonic +‎ -ally

Adverb edit

infrasonically (not comparable)

  1. By means of infrasound.
    • 2008 January 22, Natalie Angier, “Political Animals (Yes, Animals)”, in New York Times[1]:
      Among elephants, it is the females who are the born politicians, cultivating robust and lifelong social ties with at least 100 other elephants, a task made easier by their power to communicate infrasonically across miles of savanna floor.