Diathesis (di-ath'es-is). Natural or congenital predisposition to a special disease.

Dietetics (di-ct-et'iks). The science or study and regulation of food.

Dilatation (di-la-ta'shun). Stretched beyond the normal dimension.

Diluent (dil'u-ent). Makes less irritant; an agent that makes less irritant.

Discutients (dis-ku'te-ent). Remedies that scatter.

Disinfectant (dis-in-fek'tant). Agent that destroys disease germs or
renders ferments inactive.

Dislocation (dis-lo-ka'shun). The displacement of any part, especially a
bone.

Diuretic (diu-ret'ik). Agent to increase secretion of the urine.

Dorsal (dor'sal). Pertaining to the back or back of any part.

Drastic (dras'tic). Powerful acting remedy or agent.