Infrasound

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Sound waves having a frequency below the human audible range (below about 20 Hz). countable, uncountable

    "Elcor speech is ponderous and monotone. Among themselves, scent, slight movements, and subvocalized infrasound convey shades of meaning that make a human smile seem as subtle as a fireworks display. Since their subtlety can lead to misunderstandings with other species, the elcor often go out of their way to clarify when they are being sarcastic, amused, or angry."

Example

More examples

"The larger church organs use infrasound, which people do not hear, but feel as vibrations in their bodies."

Etymology

From infra- + sound.

Related phrases

sound wave

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.