0 a person who has very strong opinions about something, and tries to make other people have them too:
a religious zealot
In many authorities, of course, not the slightest effort is made to disguise their objective, which is to appoint political zealots to key council posts.
The zealots for fluoridation might better employ their energies arguing for more direct health care, based on ways of improving the nation's oral health.
I believe things have got out of proportion and the zealots have got completely out of hand.
The announcement that we have just heard will please no one but the placemen and the zealots.
However, these days he is surrounded by zealots and has succumbed.
They resisted all the zealots who told them that they should not settle for second best.
To me it is too redolent of earnest-minded, professorial zealots and long-haired intelligentsia.
The misappropriation of funds must also be investigated, and the activities of the misguided religious zealots must cease immediately.
