n The calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates.
n A pod containing the seeds of certain plants, such as the legume (taxlink|Phaseolus vulgaris|species).
n (plural) husk | Husks of cacao seeds, a decoction of which is sometimes used as a substitute or adulterant for cocoa and its products such as chocolate.
n 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.
n Any slight hollow structure; a framework, or exterior structure, regarded as not complete or filled in, as the 'shell' of a house.
n 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.
n (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.
n (nautical) The watertight outer covering of the hull of a vessel, often made with planking or metal plating.
n (nautical) A light boat the frame of which is covered with thin wood, impermeable fabric, or water-proofed paper; a racing shell or dragon boat.
n (computing) An operating system software user interface, whose primary purpose is to launch other programs and control their interactions; the user's command interpreter.