HOREHOUND n.
A plant of the genus Marrubium (M. vulgare), which has a bitter taste, and is a weak tonic, used as a household remedy for colds, coughing, etc. [Written also hoarhound.] Fetid horehound, or Black horehound, a disagreeable plant resembling horehound (Ballota nigra). -- Water horehound, a species of the genus Lycopus,…
HYDROGEN n.
A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence its use in filling balloons), and over eleven thousand times lighter than water. It is very abundant, being an ingredient of water and of many other substances, especially those o…
HYOSCYAMINE n.
dly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc.
HYPOSTATIC; HYPOSTATICAL a. 2 definitions
Relating to hypostasis, or substance; hence, constitutive, or elementary. The grand doctrine of the chymists, touching their three hypostatical principles. Boyle.