A device or person that removes something by rejection or refuses to acknowledge something.
From Latin 'deject' (to throw down) plus agent suffix '-ator'. The word combines the prefix 'de-' (down) with 'ject' (to throw), ultimately from the verb meaning to cast away or dismiss.
This word is so rare that most dictionaries don't include it—it's a ghost word created by logical combination of Latin roots, showing how English allows speakers to build new words even when they're never actually used in real life.
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