'Capillary' definitions:

Definition of 'capillary'

(from WordNet)
adjective
Of or relating to hair
adjective
Long and slender with a very small internal diameter; "a capillary tube" [syn: capillary, hairlike]
noun
A tube of small internal diameter; holds liquid by capillary action [syn: capillary, capillary tube, capillary tubing]
noun
Any of the minute blood vessels connecting arterioles with venules [syn: capillary, capillary vessel]

Definition of 'Capillary'

From: GCIDE
  • Capillary \Cap"il*la*ry\, n.; pl. Capillaries.
  • 1. A tube or vessel, extremely fine or minute. [1913 Webster]
  • 2. (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. [1913 Webster]

Definition of 'Capillary'

From: GCIDE
  • Capillary \Cap"il*la*ry\ (k[a^]p"[i^]l*l[asl]*r[y^] or k[.a]*p[i^]l"l[.a]*r[y^]; 277), a. [L. capillaris, fr. capillus hair. Cf. 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. [1913 Webster]
  • 2. Pertaining to capillary tubes or vessels; as, capillary action. [1913 Webster]
  • Capillary attraction, 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. [1913 Webster]