- the antler of a hart, formerly used as a source of ammonia.
- ammonium carbonate.
Origin of hartshorn
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hartshorn
Cloths thus saturated with hartshorn powder, are also the best things for cleaning brass locks, and the finger plates of doors.
Ryder, who was prowling about, found her there, and fetched her hartshorn.
But talk with Celsus, Celsus will advise Hartshorn, or something that shall close your eyes.Essay on Man
If there be stains in the articles, take them out with spirits of hartshorn.A Treatise on Domestic Economy
Catherine Esther Beecher
Patty, with pale face and lips compressed, ran to fetch the hartshorn.Richard Carvel, Complete
- an obsolete name for sal volatile (def. 2)
Old English heortes horn hart's horn (formerly a chief source of ammonia)
Word Origin and History for hartshorn
Online Etymology Dictionary, © 2010 Douglas Harper