vena contracta

noun
vena con·​trac·​ta | \ -kən‧ˈtraktə\
plural venae contractae\ -​kˌtē , -​ˌtī \

Definition of vena contracta

: any of the contracted parts of minimum cross section of a jet of fluid discharging from an orifice especially : the one nearest the orifice

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History and Etymology for vena contracta

New Latin, contracted vein

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