nanotube
nounUK /ˈnænəʊtjuːb/
US /ˈnænoʊtuːb/
A nanotube is a tiny tube so small you cannot see it, made of rolled-up carbon atoms.
Scientists use nanotubes to make very strong, light materials.
RELATED WORDS
OTHER MEANINGS
2. A hollow cylinder made of carbon atoms with a diameter measured in nanometers.
Carbon nanotubes conduct electricity better than copper.
3. Any tube-shaped structure on the nanometer scale, made of various materials.
Researchers grew boron nitride nanotubes in the lab.
4. A microscopic tube found in certain biological or synthetic structures.
The membrane contained tiny nanotubes that let water pass through.