Webster's English Dictionary

Enter the word to look up:

capillary

1. cap.il.lary \'kap-*-.ler-e-, Brit usu k*-'pil-*-re-\ aj [F or L; F 
   capillaire, fr. L capillaris, fr. capillus hair] 1: resembling a hair esp. 
   in slender elongated form; esp : having  a very small bore {a ~ tube} 2: 
   involving, held by, or resulting from a surface tension (as in the soil ) 
   3: of or relating to capillaries or capillarity 
2. capillary n : a capillary tube; esp : any of the smallest vessels of the 
   blood -vascular system connecting arterioles with venules and forming 
   networks throughout the body