light water

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Noun

light water (uncountable)

1. (chemistry) Water in its standard form of H₂O, containing two protium hydrogen atoms, as opposed to heavy water.
2. Foam formed by water and a fluorocarbon surfactant, used in firefighting because it floats on flammable liquids lighter than water.

Synonyms

• ¹H₂O
• protium water
• protium oxide
• diprotium oxide
• protium monoxide
• diprotium monoxide
• protiated water
• fully-protiated water

Related terms

• heavy water
• semi-heavy water
• super-heavy water

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