陰いん性せい反はん応のう

noun

negative reaction (medical test)

Used in medical contexts to describe a test result showing no sign of a condition, such as a negative allergy test or a negative infection screening.

• アレルギー検けん査さで陰いん性せい反はん応のうが出でた。

  The allergy test came back negative.

• 結けっ核かくの検けん査さは陰いん性せい反はん応のうでした。

  The tuberculosis test was negative.