Abbreviation or symbol Latin, Greek, or New Latin English a.c. ante cibum before meals a.c.h.s., acandhs ante cibum et hora somni before meals and at bedtime a.d. auris dextra right ear ad., add. adde addatur add let there be added
Likewise, why does AD stand for right ear? If you add(AD), itll shift to the right, so AD is right ear. If you subtract, itll shift to the left, so AS is left ear. AU is for both ears because A U is like a parabola function, or x^2, and that is both sides. Also, the S stands for sinister (left handed in Latin).

Furthermore, what is the abbreviation of AD?

Definition: A.D. is the Latin abbreviation for Anno Domini, which means in the year of our Lord, or, more fully, anno domini nostri Jesu Christi the year of our Lord Jesus Christ.

What does QS AD mean in pharmacy?

quantity sufficient to make