deadwater

A suburb of Bordon in Whitehill parish, East Hampshire district, Hampshire, England (OS grid ref SU8035).

A small settlement in Kielder parish, Northumberland, England, on the border with Scotland (OS grid ref NY6096).

Alternative form of dead water. [(nautical) The eddying water under a slow-moving ship's counter, or a similar area of stationary fluid or gas in advance of a concave angle, which can occur when there is strong vertical density stratification (due to salinity or temperature or both), and can cause ships to become hard to control.]