conscientious objector (n.)youdaoicibaDictYouDict[conscientious objector 词源字典]
1896, in reference to those with religious scruples about mandatory vaccination. Military sense predominated from World War I.
After a chequered career full of startling episodes and reversals, the Vaccination Bill becomes virtually the Vaccination Act. In Parliament the hottest of the contest centred round the conscientious objector. [The Lancet, Aug. 13, 1898]
[conscientious objector etymology, conscientious objector origin, 英语词源]