偽ぎ陰いん性せい

noun

false negative

Medical and testing term: a test result that incorrectly indicates the absence of a condition.

• 検けん査さで偽ぎ陰いん性せいが出でると、本ほん当とうは病びょう気きなのに見み逃のがされることがある。

  When a test yields a false negative, the disease may be missed even though it is actually present.