Defn: A variety of water-tube boiler, used chiefly in steam automobiles, consisting of a nest of strong tubes with very little water space, kept nearly red hot so that the water as it trickles drop by drop into the tubes is immediately flashed into steam and superheated.

FLASH BURNER
Flash burner.

Defn: A gas burner with a device for lighting by an electric spark.

FLASHER
Flash"er, n.

1. One who, or that which, flashes.

2. A man of more appearance of wit than reality.

3. (Zoöl.) (a) A large sparoid fish of the Atlantic coast and all tropical seas (Lobotes Surinamensis). (b) The European red-backed shrile (Lanius collurio); — called also flusher.

FLASHILY
Flash"i*ly, adv.

Defn: In a flashy manner; with empty show.

FLASHINESS
Flash"i*ness, n.