a priest or other Christian minister who is responsible for the religious needs of people in a prison, hospital, etc. or in the armed forces（监狱、医院、军队等的）教士，牧师，神父；特遣牧师 compare padre, priestTopics Religion and festivalsc2Oxford Collocations DictionaryChaplain is used after these nouns: See full entry Word OriginMiddle English: from Old French chapelain, from medieval Latin cappellanus, originally denoting a custodian of the cloak of St Martin, from cappella, originally ‘little cloak’, diminutive of cappa ‘cap or cape’.