Causes â Acute Diarrhea. Most cases of acute, watery diarrhea are caused by viruses (viral gastroenteritis). The most common ones in children are rotavirus and in adults are norovirus (this is sometimes called âcruise ship diarrheaâ due to well publicized epidemics). Bacteria are a common cause of travelerâs diarrhea.arasitic intestinal infections such as giardiasis can cause chronic diarrhea. Diabetes mellitus may be associated with diarrhea due to nerve damage and bacterial overgrowth; this occurs mainly in patients with long-standing, poorly-controlled diabetes.
1. root vegetable-any of various fleshy edible underground roots or tubers. veg, vegetable, veggie-edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant.
1. countable noun. 1  The roots of a plant are the parts of it that grow under the ground. 2  If you root a plant or cutting or if it roots, roots form on the bottom of its stem and it starts to grow. 3  Root vegetables or root crops are grown for their roots which are large and can be eaten.