D defs.my
Entry 1 sense Webster, 1913

Zealot

/zĕl'-ət/ · Zeal·ot · IPA /ˈzɛl.ət/
01 n. One who is zealous; one who engages warmly in any cause, and pursues his object with earnestness and ardor; especially, one who is overzeal…
  1. 1.
    One who is zealous; one who engages warmly in any cause, and pursues his object with earnestness and ardor; especially, one who is overzealous, or carried away by his zeal; one absorbed in devotion to anything; an enthusiast; a fanatical partisan.
    Zealots for the one [tradition] were in hostile array against zealots for the other.” — Sir J. Stephen.
    “In Ayrshire, Clydesdale, Nithisdale, Annandale, every parish was visited by these turbulent zealots.” Macaulay.