dean
noun [ C ] uk/diːn/ us/diːn/
(LEADER)
系主任;学院院长
an official of high rank in a college or university who is responsible for the organization of a department or departments
She is the new dean of the Faculty of Social Sciences. 她是社会科学院的新任院长。
the Dean of Medicine 医学系系主任
US（某行业或活动中的）元老，前辈，资深人物
someone among a group of people who has worked the longest in the particular job or activity they share, and who is their unofficial leader
Parsons is the dean of the TV news correspondents at Channel Nine. 帕森斯是9频道电视新闻记者中的元老。
(CHURCH)
（英格兰圣公会的）主任牧师;（天主教的）枢机主教长
a priest of high rank in the Church of England or the Roman Catholic Church, who is in charge of managing a large church or cathedral