lightstick

n.

A transparent plastic tube which contains chemical fluids, used for entertainment at parties, concerts, and dance clubs or used in the military for night time performances.

Also called glowstick.

thermometer

n.

An instrument for measuring temperature, especially one having a graduated glass tube with a bulb containing a liquid, typically mercury or colored alcohol, that expands and rises in the tube as the temperature increases.

drinking straw

n.

A thin paper or plastic tube used to suck liquids into the mouth.

Synonym:

straw

neon lamp

n.

A lamp consisting of a small gas-discharge tube containing neon at low pressure; luminescence is produced by the action of currents at high frequencies that are wrapped a few turns around the tube.

Synonym:

neon induction lamp, neon tube.

fluorescent lamp

n.

A lamp that produces visible light by fluorescence, especially a glass tube whose inner wall is coated with a material that fluoresces when an electrical current causes a vapor within the tube to discharge electrons.