Capillaries

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.
Anatomy. one of the minute blood vessels between the terminations of the arteries and the beginnings of the veins.
Also called capillary tube. a tube with a small bore.
Historical Examples

Arteriosclerosis and Hypertension: Louis Marshall Warfield
Fathers of Biology Charles McRae
Arteriosclerosis and Hypertension: Louis Marshall Warfield
Physiology Ernest G. Martin
Applied Physiology Frank Overton
A Civic Biology George William Hunter
Health Lessons Alvin Davison
Omphalos Philip Henry Gosse
First Book in Physiology and Hygiene J.H. Kellogg
Applied Physiology Frank Overton

adjective
resembling a hair; slender
(of tubes) having a fine bore
(anatomy) of or relating to any of the delicate thin-walled blood vessels that form an interconnecting network between the arterioles and the venules
(physics) of or relating to capillarity
noun (pl) -laries
(anatomy) any of the capillary blood vessels
a fine hole or narrow passage in any substance
adj.

n.
Blood capillary.
capillary
(kāp’ə-lěr’ē)
Any of the tiny blood vessels that connect the smallest arteries (arterioles) to the smallest veins (venules). Capillaries form a network throughout the body for the exchange of oxygen, metabolic waste products, and carbon dioxide between blood and tissue cells.
capillaries [(kap-uh-ler-eez)]

capillary [(kap-uh-ler-ee)]

Note: The interaction between the fluid and the vessel walls produces a force that can lift the fluid up into the tube, a phenomenon known as capillary action.