used medicinally. Also called monkshood, wolfsbane.

actinomycosis (lumpy jaw)
Inflammatory disease of cattle, hogs, and sometimes humans, caused by
actinomyces; causes lumpy tumors of the mouth, neck, chest, and abdomen.

Addison's disease
Caused by partial or total failure of adrenocortical function;
characterized by a bronze-like skin color and mucous membranes, anemia,
weakness, and low blood pressure.

ad libitum
At the discretion of the performer. Giving license to alter or omit a
part.

affusion
Pouring on of liquid, as in baptism.

ague
Alternating periods of chills, fever, and sweating. Used in reference to
the fevers associated with malaria.

aletris farinosa (Colicroot, star grass, blackroot,
blazing star, and unicorn root )
Bitter American herb of the Bloodwort family, with small yellow or white
flowers in a long spike (Aletris farinosa and A. aurea).

algid
Cold; chilly.