In vertebrates, the portion of the body between the thorax and pelvis, containing the stomach, intestines, liver, and other organs. In mammals, the abdomen is separated from the thorax by the diaphragm. In arthropods, the last, most posterior segment of the body. abdominal adjective (Äb-dÅm'É-nÉl)
Newcastle, California. Newcastle is an unincorporated community and census-designated place (CDP) in Placer County, California. Newcastle is located 8 miles (12.9 km) northeast of Rocklin. It is nestled in the Sierra Nevada foothills, 31 miles northeast of Sacramento.
1. San Bernadino, California (20,105 square miles) San Bernardino County in California is the largest county in the United States, at 20,105 square miles including both land and water surface area. San Bernardino is also the fifth largest county in terms of population, with 2,035,210 people as of the 2010 census.