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Any water molecules (H2O) containing two protium (1H, hydrogen-1) atoms.
Water in its usual form (as occurs in nature without human intervention), which is mostly of such form.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: chemistry, inorganic-chemistry, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: diprotium monoxide
Antonyms: none provided
Broader terms: water, mul:H2O, substance
Any water molecules (H2O) containing two protium (1H, hydrogen-1) atoms.
Water which has had even the usual small amount of deuterium removed (by human intervention): deuterium-depleted water.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: chemistry, inorganic-chemistry, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: diprotium monoxide
Antonyms: none provided
Broader terms: water, mul:H2O, substance
Foam formed by water and any of various additives, used in firefighting because it floats on flammable liquids lighter than water. (The additives were originally fluorocarbon surfactants but today are increasingly fluorine-free.)
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: w:firefighting foam, foam
By reference to atomic weight and atomic mass; more at light hydrogen.
