Definition of capillary
(Entry 1 of 2)
1a : resembling a hair especially in slender elongated form
capillary leaves
b : having a very small bore
a capillary tube
2 : involving, held by, or resulting from surface tension
capillary water in the soil
3 : of or relating to capillaries or capillarity
capillary
noun plural capillaries
Definition of capillary (Entry 2 of 2)
1 : a minute thin-walled vessel of the body especially : any of the smallest blood vessels connecting arterioles with venules and forming networks throughout the body
2 : a tube (as of glass) having a very small bore
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Time Traveler for capillary
The first known use of capillary was in the 14th century
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