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

• changeful
• changefulness
• changeless
• changelessness
• changeling
• changeover
• changer
• changing
• Changjiang
• Changtzu
• channel
• channel bass
• channel capacity
• channel cat
• channel catfish
• Channel Island
• Channel Islands National Park
• Channel Tunnel
• channel-hop
• channel-surf
• channelisation
• channelise
• channelization
• channelize
• channels