The difference between Hull and Shell
When used as nouns, hull means the outer covering of a fruit or seed, whereas shell means the calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates.
When used as verbs, hull means to remove the outer covering of a fruit or seed, whereas shell means to remove the outer covering or shell of something. see sheller.
check bellow for the other definitions of Hull and Shell
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Hull as a noun:
The outer covering of a fruit or seed
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Hull as a verb:
To remove the outer covering of a fruit or seed.
Examples:
"She sat on the back porch hulling peanuts."
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Hull as a noun:
The body or frame of a vessel, such as a ship or plane.
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Hull as a noun (mathematics, geometry, of a set A):
The smallest set that possesses a particular property (such as convexity) and contains every point of A; slightly more formally, the intersection of all sets which possess the specified property and of which A is a subset.
Examples:
"The orthogonal convex hull of an orthogonal polygon is the smallest orthogonally convex polygon that encloses the original polygon."
"holomorphically convex hull; affine hull; injective hull"
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Hull as a verb (obsolete, intransitive, nautical):
To drift; to be carried by the impetus of wind or water on the ship's hull alone, with sails furled.
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Hull as a verb (transitive):
To hit (a ship) in the hull with cannon fire etc.
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Shell as a noun (by extension):
A hard external covering of an animal. The calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates. Any mollusk having such a covering. The exoskeleton or wing covers of certain insects. The conjoined scutes that constitute the "shell" (carapace) of a tortoise or turtle. The overlapping hard plates comprising the armor covering the armadillo's body.
Examples:
"In some mollusks, as the cuttlefish, the shell is concealed by the animal's outer mantle and is considered internal."
"Genuine mother-of-pearl buttons are made from sea shells."
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Shell as a noun:
The hard calcareous covering of a bird egg.
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Shell as a noun:
One of the outer layers of skin of an onion.
Examples:
"The restaurant served caramelized onion shells."
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Shell as a noun (botany):
The hard external covering of various plant seed forms. The covering, or outside part, of a nut. A pod containing the seeds of certain plants, such as the legume Phaseolus vulgaris. Husks of cacao seeds, a decoction of which is sometimes used as a substitute or adulterant for cocoa and its products such as chocolate.
Examples:
"The black walnut and the hickory nut, both of the same ''Genus'' as the pecan, have much thicker and harder shells than the pecan."
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Shell as a noun (geology):
The accreted mineral formed around a hollow geode.
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Shell as a noun (weaponry):
The casing of a self-contained single-unit artillery projectile.
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Shell as a noun (weaponry):
A hollow usually spherical or cylindrical projectile fired from a siege mortar or a smoothbore cannon. It contains an explosive substance designed to be ignited by a fuse or by percussion at the target site so that it will burst and scattered at high velocity its contents and fragments. Formerly called a bomb.
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Shell as a noun (weaponry):
The cartridge of a breechloading firearm; a load; a bullet; a round.
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Shell as a noun (architecture):
Any slight hollow structure; a framework, or exterior structure, regarded as not complete or filled in, as the shell of a house.
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Shell as a noun:
A garment, usually worn by women, such as a shirt, blouse, or top, with short sleeves or no sleeves, that often fastens in the rear.
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Shell as a noun:
A coarse or flimsy coffin; a thin interior coffin enclosed within a more substantial one.
Examples:
"rfquotek Knight"
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Shell as a noun (music):
A string instrument, as a lyre, whose acoustical chamber is formed like a shell.
Examples:
"The first lyre may have been made by drawing strings over the underside of a tortoise shell."
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Shell as a noun (music):
The body of a drum; the often wooden, often cylindrical acoustic chamber, with or without rims added for tuning and for attaching the drum head.
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Shell as a noun:
An engraved copper roller used in print works.
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Shell as a noun (nautical):
The watertight outer covering of the hull of a vessel, often made with planking or metal plating.
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Shell as a noun (nautical, rigging):
The outer frame or case of a block within which the sheaves revolve.
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Shell as a noun (nautical):
A light boat whose frame is covered with thin wood, impermeable fabric, or water-proofed paper; a racing shell or dragon boat.
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Shell as a noun (computing):
An operating system software user interface, whose primary purpose is to launch other programs and control their interactions; the user's command interpreter.
Examples:
"The name shell originates from it being viewed as an outer layer of interface between the user and the internals of the operating system."
"The name "Bash" is an acronym which stands for "Bourne-again shell", itself a pun on the name of the "Bourne shell", an earlier Unix shell designed by Stephen Bourne, and the Christian concept of being "born again"."
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Shell as a noun (chemistry):
A set of atomic orbitals that have the same principal quantum number.
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Shell as a noun:
An emaciated person.
Examples:
"He's lost so much weight from illness; he's a shell of his former self."
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Shell as a noun:
A psychological barrier to social interaction.
Examples:
"Even after months of therapy he's still in his shell."
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Shell as a noun (business):
A legal entity that has no operations.
Examples:
"A shell corporation was formed to acquire the old factory."
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Shell as a noun:
A concave rough cast-iron tool in which a convex lens is ground to shape.
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Shell as a noun (engineering):
A gouge bit or shell bit.
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Shell as a noun (phonology):
The onset and coda of a syllable.
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Shell as a verb:
To remove the outer covering or shell of something. See sheller.
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Shell as a verb:
To bombard, to fire projectiles at, especially with artillery.
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Shell as a verb (informal):
To disburse or give up money, to pay. (Often used with out).
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Shell as a verb (intransitive):
To fall off, as a shell, crust, etc.
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Shell as a verb (intransitive):
To cast the shell, or exterior covering; to fall out of the pod or husk.
Examples:
"Nuts shell in falling."
"Wheat or rye shells in reaping."
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Shell as a verb (computing, intransitive):
To switch to a shell or command line.
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Shell as a verb:
To form shallow, irregular cracks (in a coating).
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Shell as a verb (topology):
To form a shelling.