A small tube used in a laboratory for holding small volumes.

plural of torpedo tube

fulgurite

(chemistry) A tube to prevent explosion, or to control delivery of gases by an automatic valvular connection with the outer air; especially, a bent funnel tube with bulbs for adding those reagents which produce unpleasant fumes or violent effervescence.

An orogastric tube used to pump the stomach.

plural of Ewald tube

Alternative form of tubeworm

plural of tube worm

A tube for producing Lenard rays.

plural of Lenard tube