noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A 19th-century device for inhaling hydrogen peroxide and free ammonia, believed at that time to improve the quality of the singing and speaking voice. historical

Etymology

From ammonia + -phone.

Related phrases

hydrogen peroxide

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