Protein in urine â known as proteinuria (pro-tee-NU-ree-uh) â is excess protein found in a urine sample. Protein is one of the substances identified during a test to analyze the content of your urine (urinalysis). Low levels of protein in urine are normal. Temporarily high levels of protein in urine aren't unusual either, particularly in younger people after exercise or during an illness. Persistently high levels of protein in urine may be a sign of kidney disease.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: principal, school principal, head teacher, head(noun) the educator who has executive authority for a school. she sent unruly pupils to see the principal.
Principal is a term with many meanings. As it relates to business, a principal can range from a company's representative dealing with a contractor to the company's leader. Some companies have a specific position identified as the principal, and these positions often represent key members of the leadership team.: Principals have different roles depending on the nature of an individual business, but the universal responsibility of a commercial business principal is significant influence. Some principals are also the founder, owner and CEO. Others own a large portion of company equity and sign off on major decisions.