Ante-natal—Before birth.
Anteversion—Bending forward.
Antidote—A medicine counteracting poison.
Anti-emetic—That which will stop vomiting.
Antiseptic—That which will prevent putrefaction.
Anus—Circular opening or outlet of the bowels.
Aorta—The great artery of the heart.
Aphtha—Thrush; infant sore mouth.
Aqua—Water.
Areola—Circle around the nipple.