Place of business where professional or clerical duties are performed(noun)
WordNet. Princeton University. 2010.
Use "business office" in a sentence
"While still filling these two offices, he was in 1762 appointed to the additional and important business office of Vice-Rector, by his personal friend Sir Thomas Miller, the Lord-Advocate of Scotland (afterwards Lord President of the Court of Session), who was Rector of the University that year."