A

A. The letter a, with a line above it, thus, ā, is used in medical prescriptions for ana, of each; sometimes it is written thus, āā; e. gr. Mel. sacchar. et man. ā vel āā, j. i. e. Take of honey, sugar, and manna, of each one ounce.

A, in composition, implies a negative, as in achy-lus - from α priv. and chylus- - deficient in chyle.

Abactus Abacus

(From a Hebrew word abak, dust.) A table used for preparations; so named, because mathematicians used to draw their figures on tables sprinkled with dust. It generally means an instrument very anciently employed to facilitate arithmetical operations.

driven away.) It is applied to abortions, procured by medicine.

Abacus

(From a Hebrew word abak, dust.) A table used for preparations; so named, because mathematicians used to draw their figures on tables sprinkled with dust. It generally means an instrument very anciently employed to facilitate arithmetical operations.

Abacus Major

A trough used in the mines, wherein the ore is washed.

Abalien Atus

Corrupted. Celsus. In English, we use only the word alienated, which is applied to injuries of the mental powers.

Abanet

See Bandage.

A Banga. See Ady.

Abaptiston Or Abaptista

(From α priv. and immergo, to sink under.) The perforating part and shoulder of the instrument called a trepan, to prevent its sinking suddenly upon the membranes of the brain, when the operator perforates the skull: the present practice renders this precaution needless, by having substituted a much more manageable instrument. See Trepanum.

Abartamen Abarticulatio

(From ab, and articulus, a joint;) See Diarthrosis.

Plumbum.

Abarticulatio

(From ab, and articulus, a joint;) See Diarthrosis.

Abas

Dr. Turton has made Abas a synonime with Taenia, or Tape-worm; a mistake, we presume, for Tinea, the Moth-worm. See Castelli Lexicon Mc-dicum. See Tinea - Achor - Epilepsia.

Abasir

See Spodium Arabum.

Abbaisseur

A term given by Winslow to one of the muscles of the eye, depressor oculi of Albinus.

Abdominal Ring Abductio

(Froma£ and duco, to draw,) a species of fracture, when a bone near the joint is so divided transversely, that the extremities recede from each other. Caelius Aurelianus uses this word for a strain. Abductio properly signifies leading from or drawing away, and it is from the action of the muscles that the divided ends of fractured bones recede. Abruptio is used in the same sense, as are also Apoclasma, and Apagma.

an opening in the abdomen, formed by the tendinous fibres of the external oblique near the os pubis, through which the round ligaments of the uterus, and the spermatic vessels in the other sex, pass. Through this ring portions of the intestine sometimes come down, forming ruptures. See Hernia.