4 Metaphors for capsule

The Malpighian capsules are really the beginning of the tubules, for here the work of excretion begins.

It was my opinion, and I believe that of the counsel for the defence, that, although so much stress was laid upon the capsule and the administration of the poison by that means, it was not so administered, but that the capsule was an artifice, designed to hoodwink the doctors and Treasury solicitors.

The suprarenal capsules are two little bodies, one perched on the top of each kidney, in shape not unlike that of a conical hat.

An all-night drug-store, the modern sort of emporium where the capsule and the herb have become side line to the ivoritus toilet-set and the pocket-dictionary, threw a white veil of light across the sidewalk.

4 Metaphors for  capsule