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 has a specific meaning in the context of commercial law. From Wikipedia : a principal is a person legal or naturalâwho authorizes an agent to act to create one or more legal relationships with a third party. Effectively, this means that the principal is the business.In the case of a corporation, say General Electric, the principal is General Electric itself, while Jack Welch was one of its agents during the 80s and 90s.. A partner or owner of a business. This is primarily the only reason you would use the word principal in the world of business. In Business terms, Principal has one meaning, you would be a part of a company with a financial interest in that company.