1. The doctrine of vital forces or energy 
2. The branch of biology which treats of the active vital phenomena of organisms; - opposed to biostatics

Encyclopedia: Biodynamics

• trench knife
• trench mortar
• trench mouth
• trench warfare
• trenchancy
• trenchant
• trenchantly
• trencher
• trencherman
• trenching spade
• trend
• trend analysis
• trend line
• trend-setter
• trendily
• trendiness
• trendsetting
• trendy
• Trent
• Trent River
• Trental
• trente-et-quarante
• Trentino-Alto Adige
• Trento
• Trenton