What is shell?

  • (noun): The material that forms the hard outer covering of many animals.
    See also — Additional definitions below

Some articles on shell, shells:

White-lipped Snail - Shell Description
... The white-lipped snail is very slightly smaller than the grove snail, the shell being usually about 2.5 cm (1 in) in maximum dimension ... Like the grove snail, it has considerable variability in shell colour and banding, although the shell of the white-lipped snail is perhaps most commonly yellow ... is a white lip at the aperture of the shell in adult specimens, although very rarely the brown-lipped grove snail can have a white lip, and vice versa ...
Shell - Other Uses
... Shell (machinery), each half of a two-piece plain bearing Electron shell Racing shell, a watercraft Shell element, a component of the thin-shell structure construction method ...
Shell Integration
... Shell integration (the shell method in integral calculus) is a means of calculating the volume of a solid of revolution, when integrating along an axis parallel to the axis of revolution ... process, can then calculate the integrated volume of a "family" of shells (a shell being the outer edge of a hollow cylinder) – as volume is the antiderivative of area, if one ... Shell integration can be considered a special case of evaluating a double integral in polar coordinates ...
Acteonoidea - Description
... All acteonoids have a shell that resembles that of many prosobranchs ... are able to withdraw completely into the shell and to close the shell with an operculum, e.g ...
Macintosh Programmer's Workshop - History
... with MPS.) 'MPS ' has always been the creator signature of the MPW Shell as a result of this ... Early contributors included Rick Meyers (project lead and MPW Shell command interpreter), Jeff Parrish (MPW Shell editor), Dan Smith (MPW Shell ... A shell memory leak was fixed on October 10, 1986 and MPW 1.0.1 was born ...

More definitions of "shell":

  • (noun): The exterior covering of a bird's egg.
    Synonyms: eggshell
  • (noun): A rigid covering that envelops an object.
    Example: "The satellite is covered with a smooth shell of ice"
  • (verb): Look for and collect shells by the seashore.
  • (noun): The housing or outer covering of something.
    Synonyms: case, casing
  • (noun): A very light narrow racing boat.
    Synonyms: racing shell
  • (verb): Hit the pitches of hard and regularly.
    Example: "He shelled the pitcher for eight runs in the first inning"
  • (noun): The hard largely calcareous covering of a mollusc.
  • (noun): The hard usually fibrous outer layer of some fruits especially nuts.
  • (verb): Remove the husks from.
    Synonyms: husk
  • (noun): Hard outer covering or case of certain organisms such as arthropods and turtles.
    Synonyms: carapace, cuticle
  • (verb): Remove from its shell or outer covering.
    Example: "Shell the legumes"; "shell mussels"
  • (verb): Use explosives on.
    Synonyms: blast
  • (noun): Ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun.
  • (verb): Fall out of the pod or husk.
    Example: "The corn shelled"
  • (noun): A metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners).
    Synonyms: plate, scale

Famous quotes containing the word shell:

    How then can we account for the persistence of the myth that inside the empty nest lives a shattered and depressed shell of a woman—a woman in constant pain because her children no longer live under her roof? Is it possible that a notion so pervasive is, in fact, just a myth?
    Lillian Breslow Rubin (20th century)

    There are no small number of people in this world who, solitary by nature,
    always try to go back into their shell like a hermit crab or a snail.
    Anton Pavlovich Chekhov (1860–1904)

    I was even more surprised at the power of the waves, exhibited on this shattered fragment, than I had been at the sight of the smaller fragments before. The largest timbers and iron braces were broken superfluously, and I saw that no material could withstand the power of the waves; that iron must go to pieces in such a case, and an iron vessel would be cracked up like an egg- shell on the rocks.
    Henry David Thoreau (1817–1862)