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Noun: invalidator  in'va-li,dey-tu(r)
  1. An official who can invalidate or nullify
    "my bank check was voided and I wanted to know who the invalidator was";
    - voider, nullifier

Derived forms: invalidators

Type of: functionary, official

Nearest

invade
invader
invading
invaginate
invagination
invalid
invalidate
invalidated
invalidating
invalidation
invalidator
invalidism
invalidity
invalidly
invalidness
invaluable
invaluableness
invaluably
Invar
invariability
invariable