CAPILLARY

I. adjective Etymology: French or Latin; French capillaire, from Latin capillaris, from capillus hair Date: 14th century 1. resembling a hair especially in slender elongated form , having a very small bore , involving, held by, or resulting from surface tension , of or relating to capillaries or capillarity, II. noun (plural -laries) Date: 1667 a ~ tube