tub-

(Latin: pipe)

acinotubular
Composed of tubular acini or of tubules ending in acini.
nanotube
A hollow cylindrical or toroidal molecule made of one element, usually carbon. Nanotubes are being investigated as semiconductors and for uses in nanotechnology.

A toroid is defined as a surface generated by rotating a closed curve around an axis that is in the same plane as the curve but does not intersect it.

tube
tubicole (verb), tubicoles; tubicoled; tubicoling: holes, tubes
Existing in tube-dwelling kinds of habitats.
tubing
tuboabdominal
Relating to a uterine (fallopian) tube and the abdomen.
tubular
tubulated
tubulose
tubulous
tubulure
A short tubular opening, as in a glass jar or at the top of a retort (glass bulb with a long neck bent downward, used for distilling or decomposing substances by heat).
uterotubal

A cross reference of word units that are related, directly and/or indirectly, with "tube, pipe": aulo-; can-, cann-; duc-, -duct (to lead, leading); fistul-; siphon-.