SHUTTERING
Noun
shuttering (plural shutterings)
The act of closing something with shutters.
(figurative) The winding down of a business, a publication, etc.
(construction) Formwork.
Verb
shuttering
present participle of shutter
Source: Wiktionary
SHUTTER
Shut"ter, n.
1. One who shuts or closes.
2. A movable cover or screen for a window, designed to shut out the
light, to obstruct the view, or to be of some strength as a defense;
a blind.
3. A removable cover, or a gate, for closing an aperture of any kind,
as for closing the passageway for molten iron from a ladle.
Source: Webster’s Unabridged Dictionary 1913 Edition