morning sickness; nausea and vomiting of pregnancy
Medical term for morning sickness; the everyday word is つわり.
See also: つわり
Symptoms of morning sickness are often seen in early pregnancy.
The doctor diagnosed her with morning sickness.
The kanji 悪 (bad) and 阻 (obstruct) together suggest a condition that obstructs normal well-being. The reading おそ is a kun'yomi-based reading specific to this medical term.