Solutions Involving practical participation rather than theory has 8 entries with similar clues
- 7-letter words
- appliedPractical rather than theoretical
- sit-outAvoid participation in a dance, etc.
- empiricDerived from experiment and observation rather than theory
- 8-letter words
- a-prioriReasoning from first principles (Latin)/reasoning based on theory rather than observation
- 10-letter words
- functionalUseful and practical rather than just decorative
- 11-letter words
- utilitarianUseful and practical rather than just decorative
- 13-letter words
- rule-of-thumbA fairly accurate guide based on practice rather than theory
- 23-letter words
- niels-henrik-david-bohrDanish physicist and pioneer in quantum physics whose theory of the structure of atom incorporated quantum theory for the first time