light water
Any water molecules containing two protium atomsAny 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.
» Air is lighter than water.
Luft ist leichter als Wasser.
Воздух легче воды.
Meaning
3 sensesAny water molecules (H₂O) containing two protium (¹H, hydrogen-1) atoms.
(uncountable)Water in its usual form (as occurs in nature without human intervention), which is mostly of such form.
(uncountable)Water which has had even the usual small amount of deuterium removed (by human intervention): deuterium-depleted water.
(uncountable)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.)
Examples
3 sentencesAir is lighter than water.
ruВоздух легче воды. — odexed
deLuft ist leichter als Wasser. — Zaphod
Ice is lighter than water.
ruЛёд легче воды. — marafon
deEis ist leichter als Wasser. — carlosalberto
Oil is lighter than water.
ruМасло легче воды. — marafon
deÖl ist leichter als Wasser. — mhr
Origin
By reference to atomic weight and atomic mass; more at light hydrogen.By reference to atomic weight and atomic mass; more at light hydrogen.
Wiktionary, CC BY-SA 4.0 · source
Synonyms
1 synonymsWord family
3 related wordsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable