add. ·noun lit., a shell;.
2. coquille ·add. ·noun the expansion of the guard of a sword, dagger, ·etc.
3. coquille ·add. ·noun a shell or shell-like dish or mold in which viands are served.
4. coquille ·add. ·noun a form of ruching used as a dress trimming or for neckwear, and named from the manner in which it is gathered or fulled.