the world > matter > properties of materials > temperature > heat > heating or making hot > that which or one who heats > [noun] > a device for heating or warming > fuelled by gas > gas-burner (8)
any of various devices in which the combustion of gas is used as a source of light or heat; cf. burner, n. 4.
In a gas cooker, the part containing the hole or holes through which the gas passes before combustion. See also cook, v.1 phrases 3.