noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A form of microphone that detects and records seismic vibrations.
2. 2
   A percussion instrument consisting of a drum filled with pellets, played by swirling it around to produce a sound like shifting earth.

Etymology

From geo- + -phone.

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