beluga /bi-looˈgə/

1. The great Russian sturgeon, a source of caviar, Acipenser huso
2. The white whale, closely allied to the narwhal, found in Arctic seas

• action potential
• action potentials
• action radius
• action replay
• action replays
• actions
• action sheet
• action spectra
• action spectrum
• action stations
• action-taking
• activate
• activated
• activated charcoal
• activates
• activating
• activation
• activations
• activator
• activators
• active
• active birth
• active births
• active control system
• active immunities