Capillary tube

What is Capillary tube?

Capillary tube definition and meaning on Dictionary terms:
pertaining to or occurring in or as if in a tube of fine bore.
resembling a strand of hair; hairlike.
Physics. pertaining to capillarity.of or relating to the apparent attraction or repulsion between a liquid and a solid, observed in capillarity.

Anatomy. pertaining to a capillary or capillaries.

noun, plural cap