Capillary definitions

kăp'ə-lĕr'ē
Having a very small internal diameter.

A capillary tube.

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The definition of a capillary is a small blood vessel that is part of the network of the small arteries and small veins, or an extremely thin tube through which nothing thicker than a human hair can pass.

A tiny blood vessel in your body that connects your smallest arteries (your arterioles) to your smallest veins (your venules) is an example of a capillary.

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Relating to or resembling a hair; fine and slender.
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Of or relating to the capillaries.
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Of or relating to capillarity.
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One of the minute blood vessels that connect arterioles and venules. These blood vessels form an intricate network throughout the body for the interchange of various substances, such as oxygen and carbon dioxide, between blood and tissue cells.
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A tube with a very small internal diameter.
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Of or like a hair, esp. in being very slender.
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Having a very small bore.
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In or of capillaries.
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A tube with a very small bore.
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Any of the tiny blood vessels normally connecting the smallest arteries (arterioles) with the smallest veins (venules)
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Relating to or resembling a hair; fine and slender.
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Having a very small internal diameter.

A capillary tube.

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Relating to the capillaries.
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Relating to capillarity.
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One of the minute blood vessels that connect arterioles and venules. These blood vessels form an intricate network throughout the body for the interchange of various substances, such as oxygen and carbon dioxide, between blood and tissue cells.
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A tube with a very small internal diameter.
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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.
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Of or pertaining to hair.
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Pertaining to a narrow tube.
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A narrow tube.
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(anatomy) Any of the small blood vessels that connect arteries to veins.
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Origin of capillary

From Latin capillāris (“pertaining to the hair”), from capillus (“the hair, prop. of the head”), from caput (“head”).