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| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| capillary tube | |
| —n | |
| a glass tube with a fine bore and thick walls, used in thermometers, etc | |
capillary cap·il·lary (kāp'ə-lěr'ē)
adj.
Of or relating to the capillaries.
Relating to or resembling a hair; fine and slender.
| capillary (kāp'ə-lěr'ē) Pronunciation Key
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. |
A thin tube, such as a blood vessel or a straw, through which fluids flow.
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.