hartshorn

[ hahrts-hawrn ]
/ ˈhɑrtsˌhɔrn /

noun

the antler of a hart, formerly used as a source of ammonia.
ammonium carbonate.

RELATED WORDS

Origin of hartshorn

before 1000; Middle English hertis horn, Old English heortes horn. See hart, 's1, horn
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British Dictionary definitions for hartshorn

hartshorn

/ (ˈhɑːtsˌhɔːn) /

noun

an obsolete name for sal volatile (def. 2)

Word Origin for hartshorn

Old English heortes horn hart's horn (formerly a chief source of ammonia)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012