penstock /penˈstok/

1. A sluice
2. (in a hydroelectric or other plant) a valve-controlled water conduit

• diageotropically
• diageotropism
• diageotropisms
• diaglyph
• diaglyphs
• diagnosabilities
• diagnosability
• diagnosable
• diagnose
• diagnoses
• diagnosis
• diagnostic
• diagnostic characters
• diagnostician
• diagnosticians
• diagnostic program
• diagnostic programs
• diagnostic routine
• diagnostics
• diagometer
• diagometers
• diagonal
• diagonally
• diagonals
• diagonal scale