noun

• An artillery bombardment.
• The removal of the shell from a nut, pea etc.
• (uncountable) Grain from which the husk has been removed.
• (topology) An ordering of the facets of a boundary complex such that the intersection of each facet (other than the first) with the union of all preceding facets is homeomorphic to a ball or sphere. See Shelling (topology)
• Shallow, irregular cracks that appear on the surface of a coating such as plaster or mortar.