'Sheathing' definitions:

Definition of 'sheathing'

From: WordNet
noun
Protective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior [syn: sheathing, overlay, overlayer]

Definition of 'Sheathing'

From: GCIDE
  • Sheathing \Sheath"ing\, p. pr. & a. from Sheathe. Inclosing with a sheath; as, the sheathing leaves of grasses; the sheathing stipules of many polygonaceous plants. [1913 Webster]

Definition of 'Sheathing'

From: GCIDE
  • Sheathing \Sheath"ing\, n. That which sheathes. Specifically: (a) The casing or covering of a ship's bottom and sides; the materials for such covering; as, copper sheathing. (b) (Arch.) The first covering of boards on the outside wall of a frame house or on a timber roof; also, the material used for covering; ceiling boards in general. [1913 Webster]