Definition of midstream in English:

midstream

noun

  • [mass noun] The middle of a stream or river:

    ‘the ferry was moving out into midstream’
    • ‘In midstream however the croc suddenly dives leaving the frog struggling with the current.’
    • ‘It is a great sight, with ant-like streams pouring across long pontoons over the river's shallow sandy banks to innumerable craft moored midstream.’
    • ‘In fact, a good number of them collapsed midstream and went with the water.’
    • ‘This is particularly important when the wind is in your face and you want to hold the float on line either far bank or midstream.’

adjective

Medicine
  • (of urine) passed in the middle part of an act of urinating.

    • ‘A midstream clean-catch technique usually is adequate in men and women.’
    • ‘It's important to remember you should use midstream urine for the most accurate result.’
    • ‘Urine specimens generally are obtained by a midstream clean-catch technique, and one study showed that cleansing does not decrease contamination rates in adults.’
    • ‘Like the chemical analysis, the urine must be collected by the midstream or clean catch technique.’
    • ‘All the women who agreed to participate provided a midstream urine specimen that their general practitioner tested immediately with a standard urine dipstick and then sent for microbiological examination and culture.’

Pronunciation:

midstream

/mɪdˈstriːm/