What does "capillary" mean?

Capillary: Pertaining to capillary tubes or vessels; as, capillary action. Capillary attraction, Capillary repulsion, the apparent attraction or repulsion between a soild and liquid caused bycapillarity. See Capillarity, and Attraction. -- Capillarity tubes. See the Note under Capillarity.

Additional senses

  1. 2.A tube or vessel, extremely fine or minute.
  2. 3.(Anat.) A minute, thin-walled vessel; particularly one of the smallest blood vessels connecting arteries and veins, but used also for the smallest lymphatic and biliary vessels.

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