[1] : The Collaborative International Dictionary of English v.0.48

hartshorn \harts"horn`\ -h^orn`, n.
   1. the horn or antler of the hart, or male red deer.
      1913 webster

   2. spirits of hartshorn see below; volatile salts.
      1913 webster

   hartshorn plantain bot., an annual species of plantain
      plantago coronopus; -- called also buck's-horn.
      --booth.

   hartshorn shavings, originally taken from the horns of
      harts, are now obtained chiefly by planing down the bones
      of calves. they afford a kind of jelly. --hebert.

   salt of hartshorn chem., an impure solid carbonate of
      ammonia, obtained by the destructive distillation of
      hartshorn, or any kind of bone; volatile salts. --brande 
      c.

   spirits of hartshorn chem., a solution of ammonia in
      water; -- so called because formerly obtained from
      hartshorn shavings by destructive distillation. similar
      ammoniacal solutions from other sources have received the
      same name.
      1913 webster
see also:
hartshorn plantain plantago coronopus buck's-horn hartshorn shavings salt of hartshorn spirits of hartshorn 

Plantain >> P Words
Plantain, definition of term: Plantain
plantain_pag1.html

Hartshorn >> H Words
Hartshorn, definition of term: Hartshorn
hartshorn_pag1.html

Plantain Lily >> P Words
Plantain Lily, definition of term: Plantain Lily
plantain+lily_pag1.html

Indian Plantain >> I Words
Indian Plantain, definition of term: Indian Plantain
indian+plantain_pag1.html