An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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vena contracta
  شاره‌گذر ِ ترنگیده  
šâre-gozar-e terengidé
Fr.: veine contractée  

The location in a → fluid stream where the
→ cross section of the → stream is at a minimum, and fluid velocity is the highest, such as in the case of a → jet issuing out of a → nozzle.

Etymology (EN): L. vena “channel;” contracta, “contracted,” → contract.

Etymology (PE): Šâre-gozar “fluid passage,” → fluid; → passage, terengidé, → contracted.