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.
For the spirit used in cocktails, see Sourz. A sour is a traditional family of mixed drinks. Common examples of sours are the margarita and the sidecar. Sours belong to one of the old families of original cocktails and are described by Jerry Thomas in his 1862 book How to Mix Drinks.