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Message shell

Source : Webster's Revised Unabridged Dictionary (1913)

Message \Mes"sage\ (?; 48), n. [F., fr. LL. missaticum, fr. L.
   mittere, missum, to send. See {Mission}, and cf.
   {Messenger}.]
   1. Any notice, word, or communication, written or verbal,
      sent from one person to another.

            Ehud said, I have a message from God unto thee.
                                                  --Judg. iii.
                                                  20.

   2. Hence, specifically, an official communication, not made
      in person, but delivered by a messenger; as, the
      President's message.

   {Message shell}. See {Shell}.

Shell \Shell\, n. [OE. shelle, schelle, AS. scell, scyll; akin
   to D. shel, Icel. skel, Goth. skalja a tile, and E. skill.
   Cf. {Scale} of fishes, {Shale}, {Skill}.]
   1. A hard outside covering, as of a fruit or an animal.
      Specifically:
      (a) The covering, or outside part, of a nut; as, a
          hazelnut shell.
      (b) A pod.
      (c) The hard covering of an egg.

                Think him as a serpent's egg, . . . And kill him
                in the shell.                     --Shak.
      (d) (Zo["o]l.) The hard calcareous or chitinous external
          covering of mollusks, crustaceans, and some other
          invertebrates. In some mollusks, as the cuttlefishes,
          it is internal, or concealed by the mantle. Also, the
          hard covering of some vertebrates, as the armadillo,
          the tortoise, and the like.
      (e) (Zo["o]l.) Hence, by extension, any mollusks having
          such a covering.

   2. (Mil.) A hollow projectile, of various shapes, adapted for
      a mortar or a cannon, and containing an explosive
      substance, ignited with a fuse or by percussion, by means
      of which the projectile is burst and its fragments
      scattered. See {Bomb}.

   3. The case which holds the powder, or charge of powder and
      shot, used with breechloading small arms.

   4. Any slight hollow structure; a framework, or exterior
      structure, regarded as not complete or filled in; as, the
      shell of a house.

   5. A coarse kind of coffin; also, a thin interior coffin
      inclosed in a more substantial one. --Knight.

   6. An instrument of music, as a lyre, -- the first lyre
      having been made, it is said, by drawing strings over a
      tortoise shell.

            When Jubal struck the chorded shell.  --Dryden.

   7. An engraved copper roller used in print works.

   8. pl. The husks of cacao seeds, a decoction of which is
      often used as a substitute for chocolate, cocoa, etc.

   9. (Naut.) The outer frame or case of a block within which
      the sheaves revolve.

   10. A light boat the frame of which is covered with thin wood
       or with paper; as, a racing shell.

   {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}. (Zo["o]l.)
       (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} (Zo["o]l.), 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.
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