penstock /penˈstok/

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

• acrobatic
• acrobatically
• acrobatics
• acrobatism
• acrobatisms
• acrobats
• acrocentric
• acrocentrics
• acrocyanosis
• acrogen
• acrogenic
• acrogenous
• acrogenously
• acrogens
• acrolein
• acroleins
• acrolith
• acrolithic
• acroliths
• acromegalic
• acromegalies
• acromegaly
• acromia
• acromial
• acromion