Hemionitis

(From a mule; because, like a mule, it is sterile). Mule's fern. Hemionitis lan~ ceolata Lin. Sp. Pl. 1535. It grows in Italy; resembles the hart's tongue in appearance and virtues. See Lingua cervina.

Hemionium

(From the same; because it is supposed to make women steril, like the mule). See Asplenium

Hemiopsia

(From half, and vie

An affection of the sight, in which a person sees only half the object.

Hemipagia

(From half, and fixed).

See Cephalalgia.

Hemiplegia Hemiplexia

(From half, and to strike). Dr. Cullen arranges it as the second species of paralysis, in which one side of the body-only is affected: of this he mentions two varieties. 1. When it occurs in plethoric, and 2. when in leucophleg-matic habits. It usually begins with, or follows, a paroxysm of apoplexy; and when the hemiplegia, after subsisting for some time, becomes fatal, it is commonly by passing again into the state of apoplexy. The relation, therefore, between the two diseases is sufficiently evident, and is further strongly confirmed by the hemiplegia coming upon persons of the same constitution, and being preceded by the symptoms of apoplexy. See Paralysis. London Medical Journal, vol. i. p. 323; vol. ii. p. 198.

Hemirhombion Hemitomon

(from half, and to revolve; or to cut). A bandage mentioned by Hippocrates, called semirhombus, from its extending half way round the part to which it is fixed; and hemitsmon, from its being cut half way down.

Hemisphaera

Half of a globe applied to each half of the brain.

Hemitritaeus

(From half, and third, or tertian). See Semitertiana febris.

Hepar Heper

Martinius and Gorraeus derive it from to work, and blood-; supposing its office was to prepare the blood. It has been also derived from the Hebrew chebar, gall. The liver. See Jecur.

Hepar. sulphuris. A sulphuret prepared by adding sulphur to a fixed alkali, chiefly employed in medicine as a counterpoison of hydrargyrus muriatus and arsenic. When an acid is added, the gas which escapes is called hepatic, and it is the peculiar ingredient in the Harrowgate water, to which its smell is owing. Three parts of filings of iron, and two parts of sulphur, mixed, separate a similar gas, which is only hydrogenous gas, containing sulphur in solution.

Hepar. uterinum. See Placenta.