The light produced by the burning gas in such a lamp.
A lamp which operates by burning piped illuminating gas (or town gas).
To manipulate someone such that they doubt their own memory, perceptions of reality, or sanity, typically for malevolent reasons.
Light from above; toplighting.
Any glazing above a main window, partition or door
A skylight.
The upper (and usually smaller) part (casement) of a window, often hinged a the top