Diascordium

(From and scordium,) from containing scordium, formerly called elect, e scor-dio. Hieronymus Fracastorius first described it; and it was named Fracastorii confectio; though now rejected from the London Pharmacopoeia.

Dia Sena

(From and sena). It is an antidote in Myrepsus, containing senna; but very different from the pulvis e sena now in use.

Diase Ricos

(From and silk). A composition in which silk is an ingredient.

Diasmyrnon

Or Diasmy Rnes. A name of several collyria, which contain myrrh ( ), called also euelpidium and athenippon.

Diasostica

(From, and to preserve).

See Prophylace.

Diaspe Rmation

(From and a seed). A name of two malagmas, compounded of seeds.

Dia Sphage

(From to separate). An interstice. The interval between two branches of a vein. Hippocrates.

Diasphy Xis

(From and to strike).

The pulsation of an artery.

Diastasis

(From to separate,) signifies the distance betwixt the fractured ends of bones receding from each other; also the natural interstice betwixt the radius and the ulna. Sometimes it signifies that distention of the muscles which happens in spasms. When this word is applied to the stomach, it means an effort to vomit; and when to the pulse, it is synonymous with diastole. It sometimes means a luxation.

Diaste Aton

From and fat). The name of an ointment containing the fat of a stag, a sow, a goose, and a hen.

Dia Stole

(From to stretch). In anatomy, it imports the dilatation of the heart, auricles, and arteries; in contradistinction to systole, by which is understood their contraction. In the diastole the artery is enlarged both in length and breadth. In the systole the coats of the arteries restore themselves by their elasticity, assisted by the action of the muscular fibres. The diastole is performed almost instantaneously, the systole more gradually, insomuch that the latter employs two-thirds more time than the former. When the heart begins to vibrate, the diastole is the first motion. The heart has only two motions, dilatation and contraction; but it has been supposed to have a third, or subsultory motion, by which the blood is projected forward from the ventricles of the heart into the large vessels. This idea is, however, unfounded.