infrasonically en · ADV
Etymology
From infrasonic + -ally.
Meanings
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(not-comparable) By means of infrasound.
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.
2008 January 22, Natalie Angier, “Political Animals (Yes, Animals)”, in New York Times: