hartshorn

/หˆhษ‘หtshษ”หn/

IPA: /HH AA1 R T S HH AO0 R N/

noun
  1. 1

    The antler of a hart, once used as a source of ammonia.

  2. 2

    An aqueous solution of ammonia; smelling salts.

verb
  1. 1

    To revive with hartshorn smelling salts.

Source: https://en.wiktionary.org/wiki/hartshorn