When Jubal struck the chorded shell. Dryden.

Message shell, a bombshell inside of which papers may be put, in order to convey messages. -- Shell bit, a tool shaped like a gouge, used with a brace in boring wood. See Bit, n., 3. -- Shell button. (a) A button made of shell. (b) A hollow button made of two pieces, as of metal, one for the front and the other for the back, -- often covered with cloth, silk, etc. -- Shell cameo, a cameo cut in shell instead of stone. -- Shell flower. (Bot.) Same as Turtlehead. -- Shell gland. (Zoöl.) (a) A glandular organ in which the rudimentary shell is formed in embryonic mollusks. (b) A glandular organ which secretes the eggshells of various worms, crustacea, mollusks, etc. -- Shell gun, a cannon suitable for throwing shells. -- Shell ibis (Zoöl.), the openbill of India. -- Shell jacket, an undress military jacket. -- Shell lime, lime made by burning the shells of shellfish. -- Shell marl (Min.), a kind of marl characterized by an abundance of shells, or fragments of shells. -- Shell meat, food consisting of shellfish, or testaceous mollusks. Fuller. -- Shell mound. See under Mound. -- Shell of a boiler, the exterior of a steam boiler, forming a case to contain the water and steam, often inclosing also flues and the furnace; the barrel of a cylindrical, or locomotive, boiler. -- Shell road, a road of which the surface or bed is made of shells, as oyster shells. -- Shell sand, minute fragments of shells constituting a considerable part of the seabeach in some places.

To shell out, to distribute freely; to bring out or pay, as money. [Colloq.]