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.
sourdough (plural sourdoughs) A type of bread dough leavened with yeast and lactobacilli that produce acids giving a sour taste. [from 14th c.] An old-timer, especially in Alaska. [from 1898] 1944, Ernie Pyle, Brave Men, University of Nebraska Press (2001), page 80: The troops went for those fresh tomatoes like sourdoughs going for gold in the Klondike.