tube

Pregnant women typically take folate supplements to prevent neural tube defects in developing fetuses.

For a time, it used 5 million volts of electricity to shoot hydrogen nuclei down a vacuum tube at up to 100 million miles an hour.

Still, I worried about the optics of swaggering around, brandishing a long plastic tube.

The daughter suffers from a mysterious illness that requires a feeding tube and the kind of hands-on care that understandably overwhelms Linda.

As the nerve cells stop working, swallowing and breathing become more challenging and many people need feeding tubes or breathing apparatus to help them stay alive.