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.
Newcastle, CA Weather. The average temperature of Newcastle is 58.88Â°F, which is lower than the California average temperature of 61.17Â°F and is higher than the national average temperature of 54.45Â°F.