Du o de' num (duodeni, twelve each).

Du' ra Ma' ter (durus, hard; mater, mother). The outer membrane of the brain.

Dys pep' si a is a difficulty of digestion

E lim' i nate. To expel.

Ep' idem' ic. A disease affecting a great number of persons at once.

Ep' i der' mis. The cuticle.

Ep' i glot' tis (epi, upon; glottis, the tongue). The lid of the windpipe.

Ep' i the' li um. The outer surface of mucous or serous membranes.

Eu sta' chi an (u-sta'-ki-an) Tube. So named from its discoverer, an
Italian physician.

Ex cre' tion. Waste particles thrown off by the excretory organs.