a tube that carries oxygen to a heated tool; used to cut metal; the tip is continuously consumed

A sodium vapor lamp.

Alternative spelling of sodium vapor lamp

A street lamp in which electricity is passed through sodium vapour to emit a yellow light.

A group of five lakes on the United States–Canada border, consisting of Lake Superior, Lake Michigan and Lake Huron (Lake Michigan–Huron), Lake Erie and Lake Ontario.

(poetic) New Zealand.

(idiomatic, sometimes capitalized) A set of recollections available to be reviewed, especially accompanied by a feeling of nostalgia.

A lamp, containing a coil of magnesium ribbon fed into a burner by clockwork, that produced an intense light.

(chemistry) a laboratory designed for use with radioactive substances

(euphemistic) A female prostitute. / Brunfelsia spp.