Word:

Shell

n.1.A hard outside covering, as of a fruit or an animal.
Think him as a serpent's egg, . . .
And kill him in the shell.
- Shak.
2.(Zool.) 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.
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.
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.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.
11.(Fireworks) Something similar in form or action to an ordnance shell;
12.A concave rough cast-iron tool in which a convex lens is ground to shape.
13.A gouge bit or shell bit.
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
a - (Zool.) 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
(Zool.) 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.
Shell mound
See under Mound.
- Fuller.
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.
v. t.1.To strip or break off the shell of; to take out of the shell, pod, etc.; as, to shell nuts or pease; to shell oysters.
[imp. & p. p. Shelled ; p. pr. & vb. n. Shelling.]
2.To separate the kernels of (an ear of Indian corn, wheat, oats, etc.) from the cob, ear, or husk.
3.To throw shells or bombs upon or into; to bombard; as, to shell a town.
To shell out
to distribute freely; to bring out or pay, as money.
v. i.1.To fall off, as a shell, crust, etc.
2.To cast the shell, or exterior covering; to fall out of the pod or husk; as, nuts shell in falling.
3.To be disengaged from the ear or husk; as, wheat or rye shells in reaping.
Noun1.shell - ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun
2.shell - the material that forms the hard outer covering of many animals
3.shell - hard outer covering or case of certain organisms such as arthropods and turtles
Synonyms: carapace, cuticle
4.shell - the hard usually fibrous outer layer of some fruits especially nuts
5.shell - the exterior covering of a bird's egg
Synonyms: eggshell
6.shell - a rigid covering that envelops an object; "the satellite is covered with a smooth shell of ice"
7.Shellshell - a very light narrow racing boat
Synonyms: racing shell
8.shell - the housing or outer covering of something; "the clock has a walnut case"
Synonyms: casing, case
9.shell - a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners)
Synonyms: scale, plate
10.shell - the hard largely calcareous covering of a mollusc
Verb1.shell - use explosives on; "The enemy has been shelling us all day"
Synonyms: blast
2.shell - fall out of the pod or husk; "The corn shelled"
3.shell - hit the pitches of hard and regularly; "He shelled the pitcher for eight runs in the first inning"
4.shell - look for and collect shells by the seashore
5.shell - come out better in a competition, race, or conflict; "Agassi beat Becker in the tennis championship"; "We beat the competition"; "Harvard defeated Yale in the last football game"
6.shell - remove from its shell or outer covering; "shell the legumes"; "shell mussels"
7.shell - remove the husks from; "husk corn"
Synonyms: husk
1.(language)SHELL - An early system on the Datatron 200 series.

[Listed in CACM 2(5):16 (May 1959)].
2.(operating system)shell - (Originally from Multics, widely propagated via Unix) The command interpreter used to pass commands to an operating system; so called because it is the part of the operating system that interfaces with the outside world.

The commonest Unix shells are the c shell (csh) and the Bourne shell (sh).
3.shell - (Or "wrapper") Any interface program that mediates access to a special resource or server for convenience, efficiency, or security reasons; for this meaning, the usage is usually "a shell around" whatever.
Eustachian tube, L, R, acting area, aim at, alveolation, alveolus, ante up, antrum, anvil, apron, apron stage, armadillo shell, armature, armor, armor plate, armpit, atom, atomic model, attack, auditory apparatus, auditory canal, auditory meatus, auditory nerve, auditory ossicles, auditory tube, auricle, backstage, ball, ball cartridge, band shell, bandstand, bar shot, bark, barrage, basilar membrane, basin, bird shot, blank cartridge, blast, blitz, board, body armor, bomb, bombard, bony labyrinth, border, bowl, bran, bridge, buckler, buckshot, bullet, bulletproof vest, cadre, cannon, cannon shot, cannonade, cannonball, capsule, cartouche, cartridge, case, case shot, casement, casing, cauliflower ear, cavity, chaff, chain armor, chain mail, chassis, chitin, chiton, circumference, clam shell, coat of mail, cochlea, cockleshell, cocoa shell, commence firing, concave, concavity, conch, concha, corn shuck, cornhusk, cortex, coulisse, covering, cowrie, crater, crossbar shot, crust, crypt, cup, decorticate, depression, dip, disburse, dish out, dock, doorframe, dressing room, drumhead, duck shot, dumdum bullet, ear, ear lobe, eardrum, eggshell, elytron, endolymph, enfilade, envelope, epidermis, episperm, eschar, excorticate, expanding bullet, expend, exterior, external, external ear, externals, fabric, facade, face, facet, fire a volley, fire at, fire upon, flies, fly floor, fly gallery, fold, follicle, forestage, fork out, frame, framework, framing, fringe, front, funnel chest, fusillade, give out, grape, grapeshot, greenroom, grid, gridiron, habergeon, hammer, hand out, hand over, harness, hauberk, hole, hollow, hollow shell, hull, husk, incrustation, incus, inner ear, integument, ion, jacket, lacuna, langrel shot, lattice, latticework, lay out, lightboard, limpet, lineaments, lobe, lobule, lorica, lorication, lug, mail, malleus, manstopping bullet, mastoid process, middle ear, mortar, needles, nuclear atom, nuclide, nutshell, open fire, open up on, orchestra, orchestra pit, organ of Corti, outer ear, outer face, outer layer, outer side, outer skin, outline, outside, oval window, oyster shell, palea, panoply, pastry shell, pay out, peel, pellet, pepper, performing area, pericarp, perilymph, periphery, periwinkle, picture frame, piecrust, pinna, pit, planetary shell, plate, plate armor, pocket, pod, pop at, projectile, proscenium, proscenium stage, protective covering, punch bowl, rake, rifle ball, rind, round shot, round window, sash, scab, scale, scallop, scoop, scute, scutum, sea shell, secondary eardrum, semicircular canals, shell out, shield, shoot, shoot at, shot, shrapnel, shuck, sink, sinus, skeleton, skin, slough, slug, snipe, snipe at, socket, spend, spines, split shot, stage, stage left, stage right, stalactite, stalagmite, stapes, stirrup, strafe, subshell, suit of armor, superficies, superstratum, surface, switchboard, tagged atom, take aim at, test, testa, the boards, thick skin, top, torpedo, tracer, tracer atom, trough, tympanic cavity, tympanic membrane, tympanum, valence shell, vestibule, vug, whelk, window case, window frame, wings, winkle, zero in on
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Shel Silverstein
Shelby Silverstein
Sheld
Sheldafle
Sheldfowl
Sheldrake
Shelduck
Shelf
shelf bracket
shelf fungus
shelf ice
shelf life
shelfful
shelflike
shelfware
Shelfy
-- Shell --
shell bean
shell bean plant
Shell bit
Shell button
Shell cameo
shell collecting
shell corporation
shell entity
Shell flower
shell game
shell ginger
Shell gland
Shell gun
Shell ibis
shell jacket
Shell lime
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