noun, plural cap·il·lar·ies.
Origin of capillary
Examples from the Web for capillaries
About Signor Malpighi too, who as it happens discovered the presence of the capillaries by dissecting the lung of a frog.Wilderness of Spring|Edgar Pangborn
The duty of the heart is to deliver the blood to the capillaries.
The capillaries sometimes (in many leeches and Oligochaeta) extend into the epidermis itself.
Immediately the blood rushed to the capillaries of Mabel's cheeks and her colour deepened.
He knew nothing of the vessels which we now speak of as capillaries.Fathers of Biology|Charles McRae
British Dictionary definitions for capillaries
noun plural -laries
Word Origin for capillary
Word Origin and History for capillaries
1650s, "of or pertaining to the hair," from Latin capillaris "of hair," from capillus "hair" (of the head); perhaps related to caput "head" (but de Vaan finds this "difficult on the formal side" and "far from compelling, since capillus is a diminutive, and would mean 'little head', which hardly amounts to 'hair'"). Borrowed earlier as capillar (14c.). Meaning "taking place in capillary vessels" is from 1809. Capillary attraction attested from 1813. As a noun, "capillary blood vessel," from 1660s.
Medicine definitions for capillaries
Science definitions for capillaries
Culture definitions for capillaries (1 of 2)
The tiny blood vessels throughout the body that connect arteries and veins. Capillaries form an intricate network around body tissues in order to distribute oxygen and nutrients to the cells and remove waste substances. (See circulatory system.)