Editing Capillary (section)

== Etymology ==
''Capillary'' comes from the Latin word {{lang|la|capillaris}}, meaning "of or resembling hair", with use in English beginning in the mid-17th century.<ref name="oed">{{cite web |title=Capillary |url=https://www.etymonline.com/search?q=capillary |publisher=Online Etymology Dictionary |access-date=14 July 2021 |date=2021}}</ref> The meaning stems from the tiny, hairlike diameter of a capillary.<ref name=oed/> While capillary is usually used as a noun, the word also is used as an adjective, as in "[[capillary action]]", in which a liquid flows without influence of external forces, such as [[gravity]].