| Main Entry: | proving ground |
| Part of Speech: | noun |
| Definition: | testing place |
Synonyms: |
research center, testing ground |
| Main Entry: | acid test |
| Part of Speech: | noun |
| Definition: | critical test |
Synonyms: |
analysis, conclusive test, crucial test, decisive test, definitive test, experiment, genuineness, proof, proving ground, substantiation, sure test, test of value, trial, verification |
| Main Entry: | wind tunnel |
| Part of Speech: | noun |
| Definition: | testing structure |
Synonyms: |
proving ground, test bed |