reductio ad absurdum /ri-dukˈshi-ō ad ab-sûrˈdəm or re-dŭkˈti-ō ad ab-soorˈdŭm/

1. Reduction to absurdity
2. The proof of a proposition by proving the falsity of its contradictory
3. The application of a principle so strictly that it is carried to absurd lengths

• hei-tiki
• hei-tikis
• hejab
• hejabs
• hejira
• hejiras
• hejra
• hejras
• HeLa cell
• helcoid
• held
• Heldentenor
• Heldentenors
• Heldentenöre
• hele
• heled
• hele in
• helenium
• heleniums
• heles
• heli-
• heliac
• heliacal
• heliacally
• heliacal rising