capillary

(noun, adjective)

adjective

1. of or relating to hair

2. long and slender with a very small internal diameter

- a capillary tube

Similar word(s): thin, hairlike

noun

1. a tube of small internal diameter; holds liquid by capillary action

Definition categories: man–made, tube, tubing

2. any of the minute blood vessels connecting arterioles with venules

Definition categories: body