hartshorn noun. ['hɑ:tshɔ:n] OE.
[from HART + -'S¹ + HORN noun.]
1. The horn or antler of a hart; the substance obtained by rasping, slicing, or calcining this, formerly the chief source of ammonia. OE.

2. The aqueous solution of ammonia from any source. Also spirit of hartshorn. Now arch. or Hist. L17.

[TahlilGaran] English Dictionary ▲