What Causes Nausea or Vomiting? Nausea and vomiting are not diseases, but they are symptoms of many conditions such as: Motion sickness or seasickness; Early stages of pregnancy (nausea occurs in approximately 50%-90% of all pregnancies; vomiting in 25%-55%) Medication-induced vomiting; Intense pain; Emotional stress (such as fear) Gallbladder disease
Souring definition, having an acid taste, resembling that of vinegar, lemon juice, etc.; tart. See more.
DEFINITION of 'Sour Crude'. The name given to barrels of crude oil that do not meet certain content requirements, including low levels of hydrogen sulfide and carbon dioxide. Petroleum is considered sour if the total sulfur level is greater than 0.5%.