penstock /penˈstok/

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

• galenoid
• galeopithecine
• galeopithecoid
• Galeopithecus
• gales
• galette
• galettes
• Galia melon
• Galician
• Galilean
• galilee
• galilee porch
• galilee porches
• galilees
• galimatias
• galimatiases
• galingale
• galingales
• galiongee
• galiongees
• galiot
• galiots
• galipot
• galipots
• gall