Webster's Revised Unabridged Dictionary · 1913

Capillary

Capillary (kap"il*la*ry or kȧ*pil"lȧ*ry; 277) , adjective

[Latin capillaris, from capillus hair. Compare Capillaire.]

1.
Resembling a hair; fine; minute; very slender; having minute tubes or interspaces; having very small bore; as, the capillary vessels of animals and plants.
2.
Pertaining to capillary tubes or vessels; as, capillary action.
Collocations (2)
Capillary attraction or Capillary repulsion , the apparent attraction or repulsion between a solid and liquid caused by capillarity. See Capillarity, and Attraction.
Capillarity tubes , See the Note under Capillarity.

Capillary ({not transcribed}) , noun

1.
A tube or vessel, extremely fine or minute.
2.
(Anatomy) 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.