irritable bowel syndrome (Ä­r'Ä­-tÉ-bÉl) A gastrointestinal disorder without demonstrable organic pathology, characterized by abdominal cramping, constipation, diarrhea, and mucus in the stool.
(p90) Seas are generally larger than lakes and contain salt water. While the defining elements of size and being bounded are generally used, there is no formally accepted technical definition of sea among oceanographers. In international law, the United Nations Convention on the Law of the Sea states that all the ocean is the sea.
1 Oceanography[uncountable] the flowing back of the tide to a lower level as the water returns to the sea. [ 2 countable; usually singular] a flowing backward or away; decline or decay; a state of decline. 3  to flow back or away, such as the water of a tide:A crab was left stranded on the beach as the tide ebbed.