Glossary of Dune Terminology - W

W

• War of Assassins – Regulated form of warfare between noble houses, intended to "reduce involvement of innocent bystanders." The rules require "formal declarations of intent and restrict permissible weapons."
• Water of Life – Toxic liquid exhalation of a drowning sandworm, used by Fremen Reverend Mothers in the spice agony.
• Weirding way – Specialized martial art component of Bene Gesserit prana-bindu.
• Whale fur – Valuable commodity noted to be the original source of House Harkonnen's wealth. Princess Irulan is described wearing whale fur multiple times, including during her meeting with her fellow conspirators in Dune Messiah. The Prelude to Dune prequel series establishes it to be the fur of the Bjondax whales of Lankiveil, a planet controlled by the Harkonnens.
• Windowplaz (or simply plaz) – Synthetic glass, used for windows (especially in aircraft and spaceships) due to its superior strength.
• Windtrap – Type of air well "placed in the path of a prevailing wind and capable of precipitating moisture from the air caught within it, usually by a sharp and distinct drop in temperature within the trap."