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1732 B. Robinson Treat. Animal Oecon. i. 13 In observing the Motion of Water flowing through a Hole made in the Side of a Vessel, we may perceive the Vein not to fill the Hole.

1817 Ann. Philos. 10 31 The experiments of M. Hachette may be divided into three parts. The object of the first is to measure the contraction of the fluid vein proceeding from a narrow aperture.

1873 Brit. & Foreign Medico-chirurg. Rev. 52 16 But the moment that the thread was tightened..he [sc. Chauveau] instantly found that in the axis of the artery a ‘fluid vein’ was established, the vibrations of which he could plainly feel.

1917 J. E. Boyd Mech. Fluids 38 There is a contracted vein, such as occurs when a liquid jet flows from an orifice in a thin plate.

1941 Brit. Heart Jrnl. 3 2 It thus appears that he recognized the thrill and also seems to have realized the mechanism (fluid vein) of a cardiac murmur.

2001 Hist. Stud. Physical & Biol. Sci. 31 295 Mariotte's expression of the impact force of a fluid vein by the weight of a fluid cylinder with the vein's section and a length equal to the height equivalent to the fluid velocity.