1. a gas-filled tube that produces a bright flash of light when an electrical discharge passes through it, used in photography and stroboscopic equipment
Usage: technical; also called flash lamp or strobe tube

Examples

• The camera's flashtube fired with a brilliant burst of light.
• Professional photographers often replace worn flashtubes to maintain consistent exposure.
• The flashtube in the strobe unit needs to be recharged before the next shot.
• Modern LED technology is gradually replacing traditional flashtubes in some applications.
• The flashtube's xenon gas produces a color temperature ideal for daylight photography.