Proof provider (8 letters) — Crossword Helper

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The Clue

Proof provider (8 letter answer)

The Answer

ACIDTEST

Tags

acidtest analysi challenge conclusive critical decisive defining experiment proof provider step trial ultimate

Notes

The answer ACIDTEST is rarely seen, appearing only about once every 1800 puzzles.

Related Clues

Conclusive trial
Critical step
Decisive experiment
Defining challenge
Ultimate proof
Critical step in analysis