Joint adjusts to hold objects of different sizes while teeth on surface grip tight so object won't slip.
Groove weld
Between two parts, the shaped edges form a groove for the deposit of weld metal.
Grooved fitting
A gasketed mechanical pipe fitting made of ductile iron that is clamped onto a groove in a pipe rather than screwed onto threads. It is mostly used in commercial applications on pipes larger than 1 1/2" in diameter.
Grooved joint
Joint, between a fence post and rail, in which a mitered end rail is fit into a cut groove in the fence post.
Groover
(1) Hand tool used to set sheet metal seams. (2) Hand tool, also called a jointer, which is used to form an indentation or groove, in wet concrete.
Gross area
The total floor area of a structure, in square feet, measured from the outside.
Gross calorific value
The heat produced by combusting a specific quantity and volume of fuel in an oxygen-bomb colorimeter under specific conditions.
Gross domestic product (gdp)
Measurement of the value of all goods and services produced by the economy within its boundaries and is the nation's broadest gauge of economic health. GDP is normally stated in annual terms, though data are compiled and released quarterly. The government gives a preliminary figure every quarter and revises it twice. GDP is often a measure of the state of the economy.
Gross generation
The total amount of electricity produced by a power plant.
Gross income
Total income of a household before expenses and taxes are subtracted.
