doctor—usually used as an abbreviated form of the title Doctor before a doctor's name
One of the first pediatricians to get psychoanalytic training, Dr. Spock formed commonsense principles of child rearing … . Peter GayNowhere does the center describe Pluto as a planet, but nowhere do its exhibits declare "Pluto is not a planet," either. "We're not that confrontational about it," said Dr. Neil de Grasse Tyson, director of the museum's Hayden Planetarium. Kenneth Chang