capillary tube

noun

1. a glass tube with a fine bore and thick walls, used in thermometers, etc

Example Sentences

But they lived when Dr. Snir whisked the fluid away with a capillary tube.

From New York Times

The strips are curled into cylinders and welded at the seam, then stretched and cut into fine capillary tubes, which machines glue to plastic hubs.

From New York Times

This is called the capillary effect, and it it is why water magically ascends capillary tubes or a paper towel that even briefly grazes a spill below it.

From Scientific American

At the end of Beam Line 12, a scientist named Helen He showed off the object being scrutinized: a crystal inside a capillary tube, almost too small to see with the naked eye.

From Washington Post

To make their micro pumps, the researchers dissolved the polymer in dichloromethane, a solvent, and filled glass capillary tubes with the solution.

From Economist