nan·o·tube 
(nănə-tb′, -tyb′)
(nănə-tb′, -tyb′)n.
A hollow cylindrical or toroidal tube measuring nanometers in diameter, composed of atoms of a single element, typically carbon.
- cosmic noise
- cosmic ray
- cosmic ray air shower
- cosmic string
- cosmid
- cosmo
- cosmo-
- cosmochemical
- cosmochemist
- cosmochemistry
- cosmogenic
- cosmogonic
- cosmogonical
- cosmogonically
- cosmogonist
- cosmogony
- cosmographer
- cosmographic
- cosmographical
- cosmographically
- cosmography
- cosmologic
- cosmological
- cosmological constant
- cosmologically