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Webster 1913 Edition

Noun.

Groats; hulled oats.

Simmonds.

ppr.

1. Taking off the shell; casting the external hard covering; separating from hte husk and falling.

2. Separating from the ear, as maiz.

shelling

shelling ‎(countable and uncountable, plural shellings)

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.

an artillery bombardment