Gum and resin are terms used to describe varying states of a sticky, sap residue exuded from wood.
Gum arabic
Water-soluble gum, which is obtained from several African acacias, which is used as an adhesive or binder in certain paints.
Gum spot or streak
Spot on a board where the gum has concentrated.
Gunite
Trademark name for shotcrete, which is sprayed-on concrete often used in swimming pools or to prevent soil erosion by reinforcing a bank of earth.
Gunny
Used to prevent moisture loss from concrete during curing, this coarse jute cloth is wetted than placed as a cover.
Gusset
A brace or bracket used to strengthen a structure.
Gutter
A channel (usually sheet metal) installed along the downslope perimeter of a roof to convey runoff water from the roof to the drain leaders or downspouts.
