1. A container filled with water that surrounds a machine to cool it; especially that surrounding the cylinder block of an engine

Type of: vessel

Encyclopedia: Water jacket

• purple loosestrife
• purple martin
• purple milk vetch
• purple mullein
• purple nightshade
• purple onion
• purple orchis
• purple osier
• purple passage
• purple patch
• purple pea
• purple poppy mallow
• purple rock brake
• purple sage
• purple sanicle
• purple saxifrage
• purple silkweed
• purple strawberry guava
• purple trillium
• purple velvet plant
• purple virgin's bower
• purple willow
• purple-black
• purple-blue
• purple-brown