Longman Dictionary of Contemporary English - consult

~ v 1 to ask for information or advice from someone because it is their job to know about it  (If symptoms persist, consult a doctor without delay. | consult sb about sth)  (An increasing number of clients are consulting them about Social Security changes.) 2 to ask for someone's permission or to discuss something with someone so that you can make a decision together  (I can't believe you sold the car without consulting me!)  (The President consulted with European leaders before taking action.) 3 to look for information in a book, map, list etc  (Have you consulted a dictionary?)