Tests and diagnosis discussion for Gallstones: Many gallstones, especially silent stones, are discovered by accident during tests for other problems. But when gallstones are suspected to be the cause of symptoms, the doctor is likely to do an ultrasound exam. Ultrasound uses sound waves to create images of organs.
Best Answer: A feeder school feeds a particular high school. Usually, it means that all the students from that middle school go to a particular high school. Source(s):
Freebase(0.00 / 0 votes)Rate this definition: Feeder cattle. Feeder cattle are steers or heifers mature enough to be placed in a feedlot where they will be fattened prior to slaughter. Feeder calves are less than 1 year old; feeder yearlings are between 1 and 2 years old. Both types are often produced in a cow-calf operation.