Noun
(chemistry) Water in its standard form of H2O, containing two protium hydrogen atoms, as opposed to heavy water.
Foam formed by water and a fluorocarbon surfactant, used in firefighting because it floats on flammable liquids lighter than water.
Alternative form of light water
Normal water, as opposed to heavy water.
Fire fighting foam.
Source: en.wiktionary.orglight-water
The light-water designs spent, on average, about half the time being refueled or maintained. Source: Internet
In 2005 there were reports indicating that KEDO had agreed in principle to terminate the light-water reactor project. Source: Internet
This agreement started to break down from 2001 because of slow progress on the KEDO light-water reactor project and U.S. President George W. Bush 's offensive Axis of Evil speech. Source: Internet